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NSN 5310-01-326-1053Government record, cited

Washer, Flat5310-01-326-1053

NSN 5310-01-326-1053 · NIIN 013261053 · Part number 401-94233
M-B Companies, Inc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 66234
Government record, cited
NSN 5310-01-326-1053 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-326-1053. Manufacturer of record part number: 401-94233.
Also searched as  5310-01-326-1053 · 5310013261053 · NIIN 013261053 · 01-326-1053 · FSC 5310 Nuts and Washers · CAGE 66234 · 401-94233
Nearby stock numbers  ·
Features
  • Washer,flat — FSC 5310
  • Center Hole Width: 0.775 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
  • Width Across Flats: 2.000 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Peripheral Shape Style: SQUARE
  • Material: STEEL OVERALL
  • Center Hole Shape Style: SQUARE
  • Thickness: 0.188 INCHES NOMINAL IN
Identification
  • NSN: 5310-01-326-1053
  • NIIN: 013261053
  • FSC: 5310 — Nuts and Washers
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: 401-94233
  • Manufacturer: M-B Companies, Inc
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-326-1053, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is M-B Companies, Inc. 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
ParameterValue
NSN5310-01-326-1053
Primary Part Number401-94233
Item NameWasher,flat
FSC / FSG5310 / 53 — Nuts and Washers
ManufacturerM-B Companies, Inc
StatusACTIVE
Center Hole Width0.775 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
Width Across Flats2.000 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Peripheral Shape StyleSQUARE
MaterialSTEEL OVERALL
Center Hole Shape StyleSQUARE
Thickness0.188 INCHES NOMINAL IN
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
401-94233 PRIMARY M-B Companies, Inc (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 5310-01-326-1053?

NSN 5310-01-326-1053 is a Washer,flat, manufactured by M-B Companies, Inc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-326-1053?

NSN 5310-01-326-1053 has 1 manufacturer part number on file: 401-94233 (M-B Companies, Inc).

What are the specifications of 401-94233?

Key specifications for 401-94233: Center Hole Width: 0.775 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN; Width Across Flats: 2.000 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: SQUARE. 7 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-326-1053 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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