NSN 5325-01-681-9773 · NIIN 016819773 · Part number 721-8541930-A1
Naval Sea Systems Command · FSC 5325 — Fastening Devices · FSG 53 — Hardware and Abrasives · CAGE 53711
Government record, cited
NSN 5325-01-681-9773 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-681-9773. Manufacturer of record part number: 721-8541930-A1.
The Ring,retaining, cataloged under National Stock Number 5325-01-681-9773, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
Naval Sea Systems Command (CAGE 53711)
Technical Specifications
Parameter
Value
NSN
5325-01-681-9773
Primary Part Number
721-8541930-A1
Item Name
Ring,retaining
FSC / FSG
5325 / 53 — Fastening Devices
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL Q — CCL Item — Commerce Control List
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5340-01-682-07388541930POSSIBLE MATCH
HEAD,REMOVABLE,PIN
Possible match (shared part number)Naval Sea Systems Command
5305-01-682-1034POSSIBLE MATCH
SCREW,CAP,HEXAGON HEAD
Possible match (shared part number)
5305-01-682-1037POSSIBLE MATCH
SCREW,CAP,HEXAGON HEAD
Possible match (shared part number)
5305-01-682-1040POSSIBLE MATCH
SCREW,CAP,HEXAGON HEAD
Possible match (shared part number)
5306-01-682-16789057A650POSSIBLE MATCH
ROD,CONTINUOUS THREAD
Possible match (shared part number)Mcmaster-Carr Supply Co
C/1Advisory reference — outside the item-of-supply concept
U.S. Government activity
8541930
D/9Drawing number reference only
Naval Sea Systems Command
Related Parts
5340-01-682-0738POSSIBLE MATCH
HEAD,REMOVABLE,PIN
8541930
5305-01-682-1034POSSIBLE MATCH
SCREW,CAP,HEXAGON HEAD
5305-01-682-1037POSSIBLE MATCH
SCREW,CAP,HEXAGON HEAD
5305-01-682-1040POSSIBLE MATCH
SCREW,CAP,HEXAGON HEAD
5306-01-682-1678POSSIBLE MATCH
ROD,CONTINUOUS THREAD
9057A650
Frequently Asked Questions
What is NSN 5325-01-681-9773?
NSN 5325-01-681-9773 is a Ring,retaining, manufactured by Naval Sea Systems Command, classified under FSC 5325, Fastening Devices. Status: active.
What part numbers are listed for NSN 5325-01-681-9773?
NSN 5325-01-681-9773 has 1 manufacturer part number on file: 721-8541930-A1 (Naval Sea Systems Command).
What NSN replaces 5325-01-681-9773?
5 possible matches (shared part number, not a government interchangeability claim): 5340-01-682-0738, 5305-01-682-1034, 5305-01-682-1037. Verify interchangeability with system specifications before substitution.
Is NSN 5325-01-681-9773 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.
What is the DEMIL code for NSN 5325-01-681-9773?
NSN 5325-01-681-9773 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.