NSN 5310-01-541-9257 · NIIN 015419257 · Part number N9391
C E Niehoff & Co · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 76761
Government record, cited
NSN 5310-01-541-9257 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-541-9257. Manufacturer of record part number: N9391.
Also searched as5310-01-541-9257 ·
5310015419257 ·
NIIN 015419257 ·
01-541-9257 ·
FSC 5310 Nuts and Washers · CAGE 76761 · N9391
Width Across Flats: 0.675 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN
Thread Series: UNIFIED NATIONAL COARSE (UNC)
Thread Direction: RIGHT-HAND
Nominal Thread Size: 0.3750 INCHES IN
Nut Height: 0.216 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
Nut Style: HEXAGON
Thread Class: 2B
Identification
NSN: 5310-01-541-9257
NIIN: 015419257
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: N9391
Manufacturer: C E Niehoff & Co
General Description
The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-541-9257, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is C E Niehoff & 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 5310-01-541-9257?
NSN 5310-01-541-9257 is a Nut,plain,hexagon, manufactured by C E Niehoff & Co, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-541-9257?
NSN 5310-01-541-9257 has 1 manufacturer part number on file: N9391 (C E Niehoff & Co).
What are the specifications of N9391?
Key specifications for N9391: Width Across Flats: 0.675 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.3750 INCHES IN. 10 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-541-9257 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.