NSN 5325-00-663-2278 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-663-2278. Manufacturer of record part number: 69983-S77.
Manufacturer of record: Hamilton Sundstrand Corporation Dba Collins Aerospace
Identification
NSN: 5325-00-663-2278
NIIN: 006632278
FSC: 5325 — Fastening Devices
FSG: 53 — Hardware and Abrasives
Primary part number: 69983-S77
Manufacturer: Hamilton Sundstrand Corporation Dba Collins Aerospace
General Description
The Ring,retaining, cataloged under National Stock Number 5325-00-663-2278, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Ring,retaining
FSC / FSG
5325 — Fastening Devices (FSG 53)
Manufacturers
Hamilton Sundstrand Corporation Dba Collins Aerospace (CAGE 73030); Honeywell International Inc. Div Aerospace - Torrance (CAGE 70210)
Technical Specifications
Parameter
Value
NSN
5325-00-663-2278
Primary Part Number
69983-S77
Item Name
Ring,retaining
FSC / FSG
5325 / 53 — Fastening Devices
Manufacturer
Hamilton Sundstrand Corporation Dba Collins Aerospace
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5325-00-801-9703POSSIBLE MATCH
RING,RETAINING
Possible match (shared part number)
5325-00-804-5088NAS16625-1462POSSIBLE MATCH
RING,RETAINING
Possible match (shared part number)National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5325-01-009-6841POSSIBLE MATCH
RING,RETAINING
Possible match (shared part number)
5325-01-255-0419POSSIBLE MATCH
RING,RETAINING
Possible match (shared part number)
5325-01-309-8766POSSIBLE MATCH
RING,RETAINING
Possible match (shared part number)
5325-01-537-1898RR-7-7POSSIBLE MATCH
RING,RETAINING
Possible match (shared part number)Itw Food Equipment Group Llc Dba Hobart Service
Honeywell International Inc. Div Aerospace - Torrance (USA)
Reference documents
Reference
Meaning
MIL-R-21248B
5/9Secondary reference
U.S. Government activity
RR77
3/2Design control — primary reference
U.S. Government activity
Related Parts
5325-00-801-9703POSSIBLE MATCH
RING,RETAINING
5325-00-804-5088POSSIBLE MATCH
RING,RETAINING
NAS16625-1462
5325-01-009-6841POSSIBLE MATCH
RING,RETAINING
5325-01-255-0419POSSIBLE MATCH
RING,RETAINING
5325-01-309-8766POSSIBLE MATCH
RING,RETAINING
5325-01-537-1898POSSIBLE MATCH
RING,RETAINING
RR-7-7
Frequently Asked Questions
What is NSN 5325-00-663-2278?
NSN 5325-00-663-2278 is a Ring,retaining, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5325, Fastening Devices. Status: active.
What part numbers are listed for NSN 5325-00-663-2278?
NSN 5325-00-663-2278 has 2 manufacturer part numbers on file: 69983-S77 (Hamilton Sundstrand Corporation Dba Collins Aerospace), 626-001-9033 (Honeywell International Inc. Div Aerospace - Torrance).
What NSN replaces 5325-00-663-2278?
6 possible matches (shared part number, not a government interchangeability claim): 5325-00-801-9703, 5325-00-804-5088, 5325-01-009-6841. Verify interchangeability with system specifications before substitution.
Is NSN 5325-00-663-2278 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.