Military Standard MS28773-04 Teflon (PTFE) Retainer, Packing - 50/Pack

Manufacturer part number MS28773-04 · Back-up rings

PN: MS28773-04
Category: Back-up rings
Pack: SGP136654-X50 · 50/Pack

MS28773-04 is listed in the PartsPerk catalog for sourcing requests. Seller SKU SGP136654-X50. Manufacturer: Military Standard. Military Standard MS28773-04 Teflon (PTFE) Retainer, Packing - 50/Pack. This page does not claim stock, price, or approved interchange.

Part Passport

MS28773-04

Issuer Military Standard · RFQ-only · interchange not approved

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PN: MS28773-04unknown
NSN: unknown
NIIN: unknown
FSC: unknown
CAGE: unknown
Evidence: unknown
Last review: 2026-09-17

Related public references

Identifier, taxonomy, OEM, and platform doorways derived from this product's published public snapshot — not interchange or fit claims.

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AI-ready answer

Catalog record answer

MS28773-04 is listed in the PartsPerk catalog for sourcing requests. Seller SKU SGP136654-X50. Manufacturer: Military Standard. Military Standard MS28773-04 Teflon (PTFE) Retainer, Packing - 50/Pack. This page does not claim stock, price, or approved interchange.

Key facts

Seller SKU SGP136654-X50 is distinct from manufacturer part number MS28773-04.
Observed pack identity SGP136654-X50 · 50/Pack. Quantity 1 is one package, not 50 loose units.
No verified NSN is on this record.
Request sourcing opens a quote path. This page does not claim stock or price.

Best for

Buyers starting a sourcing request from a listed catalog part
Reviewers checking observed identifiers without treating this as a live offer

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Stock, price, and certification gaps can be filed through the Aviation Evidence Network — this link opens identity review; it does not invent availability or certificates.

Source record (as observed)

Verbatim ingest text — kept for provenance, not rewritten. The structured specifications below break the same facts into individually labeled fields.

Pack Quantity 50

Specifications & observed attributes

Structured fields from the owned catalog observation. Source assertions are not live certificates, stock, or prices.

Manufacturer P/N (source assertion only): MS28773-04
Country of Origin: United States
Material: Teflon (PTFE)
Series: MS28773
ECCN (source assertion only): EAR99
Schedule B (source assertion only): 3926.90.4500
Observed pack description: Pack - (Pack = 50 ea)
Observed unit of measure: 50/Pack
Observed sale UOM: ea
Shipping weight (source assertion only): 0.05 LBS
Hazmat flag (source assertion only): No

Identifiers

PN MS28773-04
SKU SGP136654-X50

More in Back-up rings

Shared category is a filing grouping only — not interchange, supersession, or fit.

Sourcing context

Where this identity sits in the catalog, which buyer contexts route through it, and which markets are in sourcing scope.

Frequently asked questions

How should I use manufacturer part number MS28773-04?

Treat MS28773-04 (Military Standard) as the primary identity for sourcing. Confirm dash, finish, and pack on the work card before RFQ.

Does this page claim stock or price?

No. This is a published catalog observation with image/context/specs when recorded. Request sourcing opens a quote path; stock and price are reviewed off-page.

Where does this identity sit in the catalog?

It is filed under Back-up rings for browse discovery. Category path is placement, not interchange. Use related identities and the category link for hub→PDP navigation.

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.

Related public references

Identifier, taxonomy, OEM, and platform doorways derived from this product's published public snapshot — not interchange or fit claims.

Visual status: Verified product image. RFQ-only — no live stock or price claims.

More in Back-up rings

Shared category is a filing grouping only — not interchange, supersession, or fit.