NSN 5325-00-901-4510 · NIIN 009014510 · Part number A1978
Edwin B. Stimpson Company, Inc. Dba Stimpson · FSC 5325 — Fastening Devices · FSG 53 — Hardware and Abrasives · CAGE 57771
Government record, cited
NSN 5325-00-901-4510 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-901-4510. Manufacturer of record part number: A1978.
Flange Outside Diameter: 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN
Barrel Overall Height: 0.107 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN
Surface Treatment: GOLD OVERALL
Barrel Outside Diameter: 0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
Material: COPPER ALLOY OVERALL
Flange Style: FLANGE
Barrel Style: FUNNEL FLANGE STRAIGHT TYPE
Identification
NSN: 5325-00-901-4510
NIIN: 009014510
FSC: 5325 — Fastening Devices
FSG: 53 — Hardware and Abrasives
Primary part number: A1978
Manufacturer: Edwin B. Stimpson Company, Inc. Dba Stimpson
General Description
The Eyelet,metallic, cataloged under National Stock Number 5325-00-901-4510, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Edwin B. Stimpson Company, Inc. Dba Stimpson. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5325-00-901-4510
Primary Part Number
A1978
Item Name
Eyelet,metallic
FSC / FSG
5325 / 53 — Fastening Devices
Manufacturer
Edwin B. Stimpson Company, Inc. Dba Stimpson
Status
ACTIVE
Flange Outside Diameter
0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN
Barrel Overall Height
0.107 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN
Surface Treatment
GOLD OVERALL
Barrel Outside Diameter
0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
Material
COPPER ALLOY OVERALL
Flange Style
FLANGE
Barrel Style
FUNNEL FLANGE STRAIGHT TYPE
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 Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3040-01-162-2843153B0005POSSIBLE MATCH
PLATE,RETAINING,SHAFT
Possible match (shared part number)Circor Naval Solutions Llc Dba Warren Pumps
5365-01-162-6401A-1978 PIECE 119POSSIBLE MATCH
BUSHING,DRIVEN
Possible match (shared part number)Circor Naval Solutions Llc Dba Warren Pumps
4320-01-223-2536379Z0016POSSIBLE MATCH
SLIPPER ASSEMBLY,ROTARY PUMP
Possible match (shared part number)Circor Naval Solutions Llc Dba Warren Pumps
7690-01-542-6995SM-A-948403-14POSSIBLE MATCH
LABEL
Possible match (shared part number)Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Edwin B. Stimpson Company, Inc. Dba Stimpson (USA)
Reference documents
Reference
Meaning
STMA1978
5/9Secondary reference
Edwin B. Stimpson Company, Inc. Dba Stimpson
Related Parts
3040-01-162-2843POSSIBLE MATCH
PLATE,RETAINING,SHAFT
153B0005
5365-01-162-6401POSSIBLE MATCH
BUSHING,DRIVEN
A-1978 PIECE 119
4320-01-223-2536POSSIBLE MATCH
SLIPPER ASSEMBLY,ROTARY PUMP
379Z0016
7690-01-542-6995POSSIBLE MATCH
LABEL
SM-A-948403-14
8455-01-572-2752POSSIBLE MATCH
INSIGNIA,SHOULDER SLEEVE
8455-01-572-2901POSSIBLE MATCH
INSIGNIA,SHOULDER SLEEVE
8455-01-664-2401POSSIBLE MATCH
INSIGNIA,SHOULDER SLEEVE
8455-01-717-6513POSSIBLE MATCH
INSIGNIA,SHOULDER SLEEVE
Frequently Asked Questions
What is NSN 5325-00-901-4510?
NSN 5325-00-901-4510 is a Eyelet,metallic, manufactured by Edwin B. Stimpson Company, Inc. Dba Stimpson, classified under FSC 5325, Fastening Devices. Status: active.
What part numbers are listed for NSN 5325-00-901-4510?
NSN 5325-00-901-4510 has 1 manufacturer part number on file: A1978 (Edwin B. Stimpson Company, Inc. Dba Stimpson).
What NSN replaces 5325-00-901-4510?
8 possible matches (shared part number, not a government interchangeability claim): 3040-01-162-2843, 5365-01-162-6401, 4320-01-223-2536. Verify interchangeability with system specifications before substitution.
What are the specifications of A1978?
Key specifications for A1978: Flange Outside Diameter: 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN; Barrel Overall Height: 0.107 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN; Surface Treatment: GOLD OVERALL; Barrel Outside Diameter: 0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 5325-00-901-4510 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.