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Hardware
Retaining rings for aviation maintenance and overhaul sourcing. Search by manufacturer part number or NSN. Listings are PartsPerk-owned observations for review — not live inventory or airworthiness approval.
73 owned part identities in this path
Start with the manufacturer part number from the illustrated parts catalog or maintenance manual. If an NSN is listed, search that next. Confirm finish, dash number, and engine or airframe applicability before opening an RFQ.
No. Category pages show PartsPerk-owned observations for sourcing review. Stock, price, trace, and airworthiness stay off the page until a separate publication review.
Yes. Submit quantity, required documents, and need-by date through the sourcing desk. Volume review is human — these pages do not auto-discount.
PartsPerk catalog pages show PartsPerk-owned observations only. They are not live stock, not certification, and not OEM affiliation. Exact PN/NSN identity is for sourcing review; publication and sellability require separate approval.
73 PartsPerk-owned parts in Retaining rings
Military Standard MS16625-4087 Corrosion Resistant Steel Ring, Retaining - 10/Pack
Approvals and Conformities NSN 5325-00-807-5335 MIL-SPEC# MS16625 Product Attributes Country of Origin United States Shipping Weight 0.01 pounds ECCN EAR99 Manufacturer P/N MS16625-4087 Schedule B Code 9606.10.0000 Pack Quantity 10 Series MS16625 Mat
Military Standard MS16625-4093 Corrosion Resistant Steel Ring, Retaining - 15/Pack
Approvals and Conformities NSN 5325-00-771-7358 MIL-SPEC# MS16625 Product Attributes Country of Origin United States Shipping Weight 0.015 pounds ECCN EAR99 Manufacturer P/N MS16625-4093 Schedule B Code 9606.10.0000 Pack Quantity 15 Series MS16625 Ma
Military Standard MS16625-4100 Corrosion Resistant Steel Ring, Retaining - 25/Pack
Approvals and Conformities NSN 5325-00-804-6860 MIL-SPEC# MS16625 Product Attributes Country of Origin United States Shipping Weight 0.025 pounds ECCN 9A991.d Manufacturer P/N MS16625-4100 Schedule B Code 9606.10.0000 Pack Quantity 25 Shaft Size 1.11
Military Standard MS16625-4112 Corrosion Resistant Steel Ring, Retaining - 10/Pack
Approvals and Conformities NSN 5325-00-598-1774 MIL-SPEC# MS16625 Product Attributes Country of Origin United States Shipping Weight 0.01 pounds ECCN 9A991.d Manufacturer P/N MS16625-4112 Schedule B Code 9606.10.0000 Pack Quantity 10 Series MS16625 M
Military Standard MS16625-4118 Corrosion Resistant Steel Ring, Retaining - 10/Pack
Approvals and Conformities NSN 5325-00-804-2276 MIL-SPEC# MS16625 Product Attributes Country of Origin United States Shipping Weight 0.01 pounds ECCN EAR99 Manufacturer P/N MS16625-4118 Schedule B Code 9606.10.0000 Pack Quantity 10 Series MS16625 Mat
Military Standard MS16625-4125 Corrosion Resistant Steel Ring, Retaining - 10/Pack
Approvals and Conformities NSN 5325-01-026-3244 MIL-SPEC# MS16625 Product Attributes Country of Origin United States Shipping Weight 0.01 pounds ECCN EAR99 Manufacturer P/N MS16625-4125 Schedule B Code 9606.10.0000 Pack Quantity 10 Series MS16625 Mat
Military Standard MS16625-4131 Corrosion Resistant Steel Ring, Retaining - 10/Pack
Approvals and Conformities Product Attributes Country of Origin United States Shipping Weight 0.01 pounds ECCN 9A991.d Manufacturer P/N MS16625-4131 Schedule B Code 9606.10.0000 Pack Quantity 10 Series MS16625 Material Corrosion Resistant Steel
Military Standard MS16625-4137 Corrosion Resistant Steel Ring, Retaining - 14/Pack
Approvals and Conformities NSN 5325-00-804-2274 MIL-SPEC# MS16625 Product Attributes Country of Origin United States Shipping Weight 0.014 pounds ECCN EAR99 Manufacturer P/N MS16625-4137 Schedule B Code 9606.10.0000 Pack Quantity 14 Ship Dimensions 2
Military Standard MS16625-4165 Corrosion Resistant Steel Ring, Retaining - 10/Pack
Approvals and Conformities NSN 5325-01-517-5701 MIL-SPEC# MS16625 Product Attributes Country of Origin United States Shipping Weight 0.01 pounds ECCN EAR99 Manufacturer P/N MS16625-4165 Schedule B Code 9606.10.0000 Pack Quantity 10 Series MS16625 Mat
Military Standard MS16625-4187 Corrosion Resistant Steel Ring, Retaining - 10/Pack
Approvals and Conformities Product Attributes Country of Origin United States Shipping Weight 0.01 pounds ECCN EAR99 Manufacturer P/N MS16625-4187 Schedule B Code 9606.10.0000 Pack Quantity 10 Series MS16625 Material Corrosion Resistant Steel
Military Standard MS16625-4193 Corrosion Resistant Steel Retaining Ring - 10/Pack
Approvals and Conformities Product Attributes Country of Origin United States Shipping Weight 0.01 pounds ECCN EAR99 Manufacturer P/N MS16625-4193 Schedule B Code 9606.10.0000 Pack Quantity 10 Series MS16625 Material Corrosion Resistant Steel
Military Standard MS16625-4218 Corrosion Resistant Steel Ring, Retaining - 10/Pack
Approvals and Conformities NSN 5325-00-020-0348 MIL-SPEC# MS16625 Product Attributes Country of Origin United States Shipping Weight 0.01 pounds ECCN EAR99 Manufacturer P/N MS16625-4218 Schedule B Code 9606.10.0000 Pack Quantity 10 Series MS16625 Mat
Military Standard MS16625-4375 Corrosion Resistant Steel Ring, Retaining - 10/Pack
Approvals and Conformities NSN 5325-00-584-9930 MIL-SPEC# MS16625 Product Attributes Country of Origin United States Shipping Weight 0.01 pounds ECCN EAR99 Manufacturer P/N MS16625-4375 Schedule B Code 9606.10.0000 Pack Quantity 10 Series MS16625 Mat
Military Standard MS16632-4025 Steel Ring, Retaining - 50/Pack
Approvals and Conformities NSN 5325-01-026-3243 Product Attributes Country of Origin United States Shipping Weight 0.05 pounds ECCN 9A991 Manufacturer P/N MS16632-4025 Schedule B Code 7318.29.0000 Pack Quantity 50 Series MS16632 Series MS16624 Materi
Military Standard MS16633-1018 Carbon Steel/Cadmium Plated Ring, Retaining - 25/Pack
Approvals and Conformities NSN 5325-00-282-1633 MIL-SPEC# MIL-R-21248 Alternate PN#s 9419254, FD9005-3 Product Attributes Country of Origin United States Shipping Weight 0.025 pounds ECCN EAR99 Color Family Gold Manufacturer P/N MS16633-1018 Schedule
Military Standard MS16633-2018 Carbon Steel/Zinc Coated Ring, Retaining - 25/Pack
Approvals and Conformities NSN 5325-01-310-9535 MIL-SPEC# MIL-R-21248 Product Attributes Country of Origin United States Shipping Weight 0.025 pounds ECCN EAR99 Color Family Gold Manufacturer P/N MS16633-2018 Schedule B Code 9606.10.0000 Pack Quantit
Military Standard MS16633-2031 Carbon Steel/Zinc Coated Ring, Retaining - 280/Pack
Approvals and Conformities NSN 5325-00-282-6305 MIL-SPEC# MIL-R-21248 Product Attributes Country of Origin United States Shipping Weight 0.28 pounds ECCN EAR99 Color Family Gold Manufacturer P/N MS16633-2031 Schedule B Code 9606.10.0000 Pack Quantity
Military Standard MS16633-3018 Carbon Steel/Phosphate Coated Ring, Retaining - 25/Pack
Approvals and Conformities Product Attributes Country of Origin United States Shipping Weight 0.025 pounds ECCN EAR99 Manufacturer P/N MS16633-3018 Schedule B Code 9606.10.0000 Pack Quantity 25 Military Standard MS16633-3018 Carbon Steel/Phosphate Co
Military Standard MS16633-4009 Stainless Steel Ring, Retaining - 25/Pack
Approvals and Conformities NSN 5325-00-543-3981 MIL-SPEC# MIL-R-21248 Product Attributes Country of Origin United States Shipping Weight 0.025 pounds ECCN EAR99 Color Family Gold Manufacturer P/N MS16633-4009 Schedule B Code 9606.10.0000 Pack Quantit
Military Standard MS16633-4012 Stainless Steel Ring, Retaining - 25/Pack
Approvals and Conformities NSN 5325-00-598-1138 MIL-SPEC# MIL-R-21248 Product Attributes Country of Origin United States Shipping Weight 0.025 pounds ECCN EAR99 Color Family Gold Manufacturer P/N MS16633-4012 Schedule B Code 9606.10.0000 Pack Quantit
Military Standard MS16633-4018 Stainless Steel Ring, Retaining - 25/Pack
Approvals and Conformities NSN 5325-00-725-0969 MIL-SPEC# MIL-R-21248 Product Attributes Country of Origin United States Shipping Weight 0.025 pounds ECCN EAR99 Color Family Gold Manufacturer P/N MS16633-4018 Schedule B Code 9606.10.0000 Pack Quantit
Military Standard MS16633-4021 Stainless Steel Ring, Retaining - 25/Pack
Approvals and Conformities NSN 5325-00-828-4765 MIL-SPEC# MIL-R-21248 Product Attributes Country of Origin United States Shipping Weight 0.025 pounds ECCN EAR99 Color Family Gold Manufacturer P/N MS16633-4021 Schedule B Code 9606.10.0000 Pack Quantit
Military Standard MS16633-4025 Stainless Steel Ring, Retaining - 100/Pack
Approvals and Conformities NSN 5365-01-394-4543 MIL-SPEC# MIL-R-21248 Product Attributes Country of Origin United States Shipping Weight 0.1 pounds ECCN EAR99 Color Family Gold Manufacturer P/N MS16633-4025 Schedule B Code 9606.10.0000 Pack Quantity
Military Standard MS16633-4037 Stainless Steel Ring, Retaining - 25/Pack
Approvals and Conformities NSN 5325-00-286-8718 MIL-SPEC# MIL-R-21248 Product Attributes Country of Origin United States Shipping Weight 0.025 pounds ECCN EAR99 Color Family Gold Manufacturer P/N MS16633-4037 Schedule B Code 9606.10.0000 Pack Quantit