NSN 5310-01-311-7348 · NIIN 013117348 · Part number 6003665
Naval Sea Systems Command · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 53711
Government record, cited
NSN 5310-01-311-7348 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-311-7348. Manufacturer of record part number: 6003665.
Also searched as5310-01-311-7348 ·
5310013117348 ·
NIIN 013117348 ·
01-311-7348 ·
FSC 5310 Nuts and Washers · CAGE 53711 · 6003665
Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
Style Designator: FLAT INTERNAL TEETH
Outside Diameter: 0.365 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN
Material Thickness: 0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
Surface Treatment: CADMIUM OR PASSIVATE OVERALL
Material: STEEL OR STEEL CORROSION RESISTING OVERALL
Hole Diameter: 0.195 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
Identification
NSN: 5310-01-311-7348
NIIN: 013117348
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 6003665
Manufacturer: Naval Sea Systems Command
General Description
The Washer,lock, cataloged under National Stock Number 5310-01-311-7348, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5310-01-311-7348
Primary Part Number
6003665
Item Name
Washer,lock
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Hardness Rating
35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
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 5310-01-311-7348?
NSN 5310-01-311-7348 is a Washer,lock, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-311-7348?
NSN 5310-01-311-7348 has 1 manufacturer part number on file: 6003665 (Naval Sea Systems Command).
What are the specifications of 6003665?
Key specifications for 6003665: Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM; Style Designator: FLAT INTERNAL TEETH; Outside Diameter: 0.365 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN; Material Thickness: 0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-311-7348 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.