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NSN 5310-01-691-6325Government record, cited

Washer, Lock5310-01-691-6325

NSN 5310-01-691-6325 · NIIN 016916325 · Part number 91074A329
Mcmaster-Carr Supply Co · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 0KVE6
Government record, cited
NSN 5310-01-691-6325 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-691-6325. Manufacturer of record part number: 91074A329.
Also searched as  5310-01-691-6325 · 5310016916325 · NIIN 016916325 · 01-691-6325 · FSC 5310 Nuts and Washers · CAGE 0KVE6 · 91074A329
Nearby stock numbers  ·
Features
  • Washer,lock — FSC 5310
  • Hardness Rating: 8.0 ROCKWELL C NOMINAL
  • Style Designator: SPLIT DOUBLE HELICAL RING
  • Outside Diameter: 0.530 INCHES NOMINAL IN
  • Color: SILVER OVERALL
  • Surface Treatment: ZINC OVERALL
  • Material: STEEL OVERALL
  • 1 manufacturer part number on file
Identification
  • NSN: 5310-01-691-6325
  • NIIN: 016916325
  • FSC: 5310 — Nuts and Washers
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: 91074A329
  • Manufacturer: Mcmaster-Carr Supply Co
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-691-6325, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 6 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
ParameterValue
NSN5310-01-691-6325
Primary Part Number91074A329
Item NameWasher,lock
FSC / FSG5310 / 53 — Nuts and Washers
ManufacturerMcmaster-Carr Supply Co
StatusACTIVE
Hardness Rating8.0 ROCKWELL C NOMINAL
Style DesignatorSPLIT DOUBLE HELICAL RING
Outside Diameter0.530 INCHES NOMINAL IN
ColorSILVER OVERALL
Surface TreatmentZINC OVERALL
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
91074A329 PRIMARY Mcmaster-Carr Supply Co (USA)
No interchangeability data on file.
Other items in FSC 5310 — Nuts and Washers
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 5310-01-691-6325?

NSN 5310-01-691-6325 is a Washer,lock, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-691-6325?

NSN 5310-01-691-6325 has 1 manufacturer part number on file: 91074A329 (Mcmaster-Carr Supply Co).

What are the specifications of 91074A329?

Key specifications for 91074A329: Overall Height: 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN; Hardness Rating: 8.0 ROCKWELL C NOMINAL; Style Designator: SPLIT DOUBLE HELICAL RING; Outside Diameter: 0.530 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-691-6325 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.
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