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NSN 5310-01-640-8400Government record, cited

Washer, Flat5310-01-640-8400

NSN 5310-01-640-8400 · NIIN 016408400 · Part number 10AHD7
Float-on Corp Div Float-on Llc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 0E3E0
Government record, cited
NSN 5310-01-640-8400 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-640-8400. Manufacturer of record part number: 10AHD7.
Also searched as  5310-01-640-8400 · 5310016408400 · NIIN 016408400 · 01-640-8400 · FSC 5310 Nuts and Washers · CAGE 0E3E0 · 10AHD7
Nearby stock numbers  ·
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 1.720 INCHES MINIMUM AND 1.780 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Peripheral Shape Style: ROUND
  • Material: STEEL OVERALL
  • Center Hole Shape Style: ROUND
  • Hole Diameter: 1.010 INCHES MINIMUM AND 1.030 INCHES MAXIMUM IN
  • Thickness: 0.111 INCHES MINIMUM AND 0.131 INCHES MAXIMUM IN
Identification
  • NSN: 5310-01-640-8400
  • NIIN: 016408400
  • FSC: 5310 — Nuts and Washers
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: 10AHD7
  • Manufacturer: Float-on Corp Div Float-on Llc
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-640-8400, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Float-on Corp Div Float-on Llc. 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
NSN5310-01-640-8400
Primary Part Number10AHD7
Item NameWasher,flat
FSC / FSG5310 / 53 — Nuts and Washers
ManufacturerFloat-on Corp Div Float-on Llc
StatusACTIVE
Overall Diameter1.720 INCHES MINIMUM AND 1.780 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Peripheral Shape StyleROUND
MaterialSTEEL OVERALL
Center Hole Shape StyleROUND
Hole Diameter1.010 INCHES MINIMUM AND 1.030 INCHES MAXIMUM IN
Thickness0.111 INCHES MINIMUM AND 0.131 INCHES MAXIMUM 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
10AHD7 PRIMARY Float-on Corp Div Float-on Llc (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 5310-01-640-8400?

NSN 5310-01-640-8400 is a Washer,flat, manufactured by Float-on Corp Div Float-on Llc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-640-8400?

NSN 5310-01-640-8400 has 1 manufacturer part number on file: 10AHD7 (Float-on Corp Div Float-on Llc).

What are the specifications of 10AHD7?

Key specifications for 10AHD7: Overall Diameter: 1.720 INCHES MINIMUM AND 1.780 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Part Name Assigned by Controlling Agency: WASHER,FLAT-SPINDLE 1.0. 7 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-640-8400 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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