NSN 5310-01-129-2727 · NIIN 011292727 · Part number N9004
C E Niehoff & Co · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 76761
Government record, cited
NSN 5310-01-129-2727 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-129-2727. Manufacturer of record part number: N9004.
Also searched as5310-01-129-2727 ·
5310011292727 ·
NIIN 011292727 ·
01-129-2727 ·
FSC 5310 Nuts and Washers · CAGE 76761 · N9004
Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
Cross-Sectional Shape Style: RECTANGULAR
Peripheral Shape Style: ROUND
Material: STEEL COMP 1050 OR STEEL COMP 1551 OR STEEL COMP 1552 OR STEEL COMP 1053 OR STEEL COMP 1054 OR STEEL COMP 1055 OR STEEL COMP 1059 OR STEEL COMP 1060 OR STEEL COMP 1561 OR STEEL COMP 1062 OR STEEL COMP 1064 OR STEEL COMP 1065 OVERALL
Center Hole Shape Style: ROUND
Hole Diameter: 0.531 INCHES NOMINAL IN
Identification
NSN: 5310-01-129-2727
NIIN: 011292727
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: N9004
Manufacturer: C E Niehoff & Co
General Description
The Washer,flat, cataloged under National Stock Number 5310-01-129-2727, 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 8 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
5310-01-129-2727
Primary Part Number
N9004
Item Name
Washer,flat
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
C E Niehoff & Co
Status
ACTIVE
Overall Diameter
1.062 INCHES NOMINAL IN
Hardness Rating
40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
Cross-Sectional Shape Style
RECTANGULAR
Peripheral Shape Style
ROUND
Material
STEEL COMP 1050 OR STEEL COMP 1551 OR STEEL COMP 1552 OR STEEL COMP 1053 OR STEEL COMP 1054 OR STEEL COMP 1055 OR STEEL COMP 1059 OR STEEL COMP 1060 OR STEEL COMP 1561 OR STEEL COMP 1062 OR STEEL COMP 1064 OR STEEL COMP 1065 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 5310-01-129-2727?
NSN 5310-01-129-2727 is a Washer,flat, manufactured by C E Niehoff & Co, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-129-2727?
NSN 5310-01-129-2727 has 1 manufacturer part number on file: N9004 (C E Niehoff & Co).
What are the specifications of N9004?
Key specifications for N9004: Overall Diameter: 1.062 INCHES NOMINAL IN; Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 8 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-129-2727 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.