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Hardware
Back-up 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.
63 owned part identities in this path
63 PartsPerk-owned parts in Back-up rings
Military Standard MS16624-4100 Steel Ring, Retaining
Approvals and Conformities NSN 5325-00-598-1785 Product Attributes Country of Origin United States Shipping Weight 0.003 pounds ECCN EAR99 Manufacturer P/N MS16624-4100 Schedule B Code 8710.00.0090 Pack Quantity 1 Series MS16624 Series MS16624 Materi
Military Standard MS16624-4125 Steel Ring, Retaining
Approvals and Conformities NSN 5325-00-282-5288 Product Attributes Country of Origin United States Shipping Weight 0.003 pounds ECCN 9A991.d Manufacturer P/N MS16624-4125 Schedule B Code 8710.00.0090 Pack Quantity 1 Series MS16624 Series MS16624 Mate
Military Standard MS16624-4143 Steel Ring, Retaining
Approvals and Conformities Product Attributes Country of Origin United States Shipping Weight 0.003 pounds ECCN EAR99 Manufacturer P/N MS16624-4143 Schedule B Code 8710.00.0090 Pack Quantity 1 Series MS16624 Military Standard MS16624-4143 Steel Ring,
Military Standard MS16624-5012 Steel Ring, Retaining
Approvals and Conformities NSN 5325-00-200-2637 Product Attributes Country of Origin United States Shipping Weight 0.003 pounds ECCN 9A991.d Manufacturer P/N MS16624-5012 Schedule B Code 8710.00.0090 Pack Quantity 1 Series MS16624 Series MS16624 Mate
Military Standard MS16624-5018 Steel Ring, Retaining - 50/Pack
Approvals and Conformities NSN 5325-00-903-7567 Product Attributes Country of Origin United States Shipping Weight 0.15 pounds ECCN 9A991.d Manufacturer P/N MS16624-5018 Schedule B Code 8710.00.0090 Pack Quantity 50 Ship Dimensions 0 x 0 x 0 inches S
Military Standard MS16624-5023 Steel Ring, Retaining
Approvals and Conformities NSN 5325-00-470-5597 Product Attributes Country of Origin United States Shipping Weight 0.003 pounds ECCN 9A991.d Manufacturer P/N MS16624-5023 Schedule B Code 8710.00.0090 Pack Quantity 1 Series MS16624 Military Standard M
Military Standard MS16624-5025 Steel Ring, Retaining
Approvals and Conformities Product Attributes Country of Origin United States Shipping Weight 0.003 pounds ECCN EAR99 Manufacturer P/N MS16624-5025 Schedule B Code 8710.00.0090 Pack Quantity 1 Series MS16624 Military Standard MS16624-5025 Steel Ring,
Military Standard MS16624-59 Steel Ring, Retaining
Approvals and Conformities NSN 5325-00-806-1686 Product Attributes Country of Origin United States Shipping Weight 0.003 pounds ECCN 9A991.d Manufacturer P/N MS16624-59 Schedule B Code 8710.00.0090 Pack Quantity 1 Series MS16624 Military Standard MS1
Military Standard MS28773-04 Teflon (PTFE) Retainer, Packing - 50/Pack
Approvals and Conformities Product Attributes Country of Origin United States Shipping Weight 0.05 pounds ECCN EAR99 Manufacturer P/N MS28773-04 Schedule B Code 3926.90.4500 Pack Quantity 50 Series MS28773 Material Teflon (PTFE) For a seal you can co
Military Standard MS28773-05 Teflon (PTFE) Retainer, Packing - 50/Pack
Approvals and Conformities NSN 5330-00-487-4687 Product Attributes Country of Origin United States Shipping Weight 0.05 pounds ECCN 9A991.d Manufacturer P/N MS28773-05 Schedule B Code 3926.90.4500 Pack Quantity 50 Series MS28773 Thickness 5/16" Mater
Military Standard MS28773-06 Teflon (PTFE) Retainer, Packing
Approvals and Conformities Product Attributes Country of Origin United States Shipping Weight 0.001 pounds ECCN 9A991.d Manufacturer P/N MS28773-06 Schedule B Code 3926.90.4500 Pack Quantity 1 Ship Dimensions 1 x 1 x 0 inches Series MS28773 Thickness
Military Standard MS28773-08 Teflon (PTFE) Retainer, Packing - 50/Pack
Approvals and Conformities NSN 5330-00-550-6742 Product Attributes Country of Origin United States Shipping Weight 0.05 pounds ECCN 9A991.d Color Family White Manufacturer P/N MS28773-08 Schedule B Code 3926.90.4500 Pack Quantity 50 Ship Dimensions 1
Military Standard MS28773-10 Teflon (PTFE) Retainer, Packing - 25/Pack
Approvals and Conformities NSN 5330-00-550-6743 Product Attributes Country of Origin United States Shipping Weight 0.025 pounds ECCN EAR99 Color Family White Manufacturer P/N MS28773-10 Schedule B Code 3926.90.4500 Pack Quantity 25 Series MS28773 Thi
Military Standard MS28773-12 Teflon (PTFE) Retainer, Packing
Approvals and Conformities NSN 5330-00-809-2587 Product Attributes Country of Origin United States Shipping Weight 0.001 pounds ECCN EAR99 Color Family White Manufacturer P/N MS28773-12 Schedule B Code 3926.90.4500 Pack Quantity 1 Series MS28773 Thic
Military Standard MS28773-16 Teflon (PTFE) Retainer, Packing
Approvals and Conformities NSN 5330-00-487-4676 Product Attributes Country of Origin United States Shipping Weight 0.001 pounds ECCN 9A991.d Manufacturer P/N MS28773-16 Schedule B Code 3926.90.4500 Pack Quantity 1 Series MS28773 Thickness 1" Material
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.