NSN 5310-01-641-5671 · NIIN 016415671 · Part number 91851A645
Mcmaster-Carr Supply Co · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 39428
Government record, cited
NSN 5310-01-641-5671 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-641-5671. Manufacturer of record part number: 91851A645.
Also searched as5310-01-641-5671 ·
5310016415671 ·
NIIN 016415671 ·
01-641-5671 ·
FSC 5310 Nuts and Washers · CAGE 39428 · 91851A645
The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-641-5671, 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 10 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.
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 5310-01-641-5671?
NSN 5310-01-641-5671 is a Nut,plain,hexagon, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-641-5671?
NSN 5310-01-641-5671 has 1 manufacturer part number on file: 91851A645 (Mcmaster-Carr Supply Co).
What are the specifications of 91851A645?
Key specifications for 91851A645: Width Across Flats: 1.0359375 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.5660 INCHES IN. 10 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-641-5671 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.