NSN 5310-01-569-2988 · NIIN 015692988 · Part number 5631-18
Eastern Co Div Eberhard Manufacturing · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 19220
Government record, cited
NSN 5310-01-569-2988 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-569-2988. Manufacturer of record part number: 5631-18.
Also searched as5310-01-569-2988 ·
5310015692988 ·
NIIN 015692988 ·
01-569-2988 ·
FSC 5310 Nuts and Washers · CAGE 19220 · 5631-18 · 12505348
Manufacturer of record: Eastern Co Div Eberhard Manufacturing
Identification
NSN: 5310-01-569-2988
NIIN: 015692988
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 5631-18
Manufacturer: Eastern Co Div Eberhard Manufacturing
General Description
The Washer,concave, cataloged under National Stock Number 5310-01-569-2988, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Eastern Co Div Eberhard Manufacturing. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040
5310-00-000-0040 · Item name not on file
5310-00-000-0077
NUT,PLAIN,ROUND
5310-00-000-0079
WASHER,FLAT
5310-00-000-0079
WASHER,FLAT
5310-00-000-1146
5310-00-000-1146 · Item name not on file
5310-00-000-3815
5310-00-000-3815 · Item name not on file
5310-00-000-4532
5310-00-000-4532 · Item name not on file
5310-00-000-4540
5310-00-000-4540 · Item name not on file
Frequently Asked Questions
What is NSN 5310-01-569-2988?
NSN 5310-01-569-2988 is a Washer,concave, manufactured by Eastern Co Div Eberhard Manufacturing, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-569-2988?
NSN 5310-01-569-2988 has 1 manufacturer part number on file: 5631-18 (Eastern Co Div Eberhard Manufacturing).
What are the specifications of 5631-18?
Key specifications for 5631-18: Special Features: MATT: STEEL,THICKNESS: .1196 INCH,OD: 1.500 INCH,CENTER HOLE: .641 SQUARE,CONCAVE RECESS: .063 INCH IN; End Item Identification: 2320-01-549-8610 TRUCK,CARGO,5TON,M1083A1E1. 0 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-569-2988 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.