NSN 5310-01-040-4739 · NIIN 010404739 · Part number 4BA
Bsi Standards Limited · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE K7766
Government record, cited
NSN 5310-01-040-4739 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-040-4739. Manufacturer of record part number: 4BA.
Also searched as5310-01-040-4739 ·
5310010404739 ·
NIIN 010404739 ·
01-040-4739 ·
FSC 5310 Nuts and Washers · CAGE K7766 · 4BA
Surface Treatment Document and Classification: DTD TO 904/C,FSCM K0195 MFR REF 1ST TREATMENT RESPONSE AND DEF130,FSCM K0195 MFR REF 2ND TREATMENT RESPONSE OVERALL
Surface Treatment: CADMIUM AND PASSIVATE OVERALL
Material: STEEL OVERALL
1 manufacturer part number on file
Manufacturer of record: Bsi Standards Limited
Identification
NSN: 5310-01-040-4739
NIIN: 010404739
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 4BA
Manufacturer: Bsi Standards Limited
General Description
The Washer,flat, cataloged under National Stock Number 5310-01-040-4739, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bsi Standards Limited. Government technical data includes 3 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5310-01-040-4739
Primary Part Number
4BA
Item Name
Washer,flat
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Bsi Standards Limited
Status
ACTIVE
Surface Treatment Document and Classification
DTD TO 904/C,FSCM K0195 MFR REF 1ST TREATMENT RESPONSE AND DEF130,FSCM K0195 MFR REF 2ND TREATMENT RESPONSE OVERALL
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 5310-01-040-4739?
NSN 5310-01-040-4739 is a Washer,flat, manufactured by Bsi Standards Limited, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-040-4739?
NSN 5310-01-040-4739 has 1 manufacturer part number on file: 4BA (Bsi Standards Limited).
What are the specifications of 4BA?
Key specifications for 4BA: Surface Treatment Document and Classification: DTD TO 904/C,FSCM K0195 MFR REF 1ST TREATMENT RESPONSE AND DEF130,FSCM K0195 MFR REF 2ND TREATMENT RESPONSE OVERALL; Surface Treatment: CADMIUM AND PASSIVATE OVERALL; Material: STEEL OVERALL. 3 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-040-4739 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.