Washer, Flat 5310-01-700-6478 NSN 5310-01-700-6478 · NIIN 017006478 · Part number BN670M12
Bossard Intl Inc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 1CJ86
NSN 5310-01-700-6478 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-700-6478. Manufacturer of record part number: BN670M12 .
Also searched as
5310-01-700-6478 ·
5310017006478 ·
NIIN 017006478 ·
01-700-6478 ·
FSC 5310 Nuts and Washers · CAGE 1CJ86 · BN670M12 · IN350450XN
Nearby stock numbers
← 5310-01-700-6420 Washer, Flat
·
5310-01-700-6509 Nut Strip →
AF 24.0 MILLIMETERS NOMINAL MM
NUT + WASHER
5310-01-700-6478 — Nuts and Washers
Features
Washer,flat — FSC 5310 Overall Diameter: 24.0 MILLIMETERS NOMINAL MM Cross-Sectional Shape Style: RECTANGULAR Outside Diameter: 24.0 MILLIMETERS NOMINAL MM Peripheral Shape Style: ROUND Material: STEEL CORROSION RESISTING OVERALL Center Hole Shape Style: ROUND Hole Diameter: 13.0 MILLIMETERS NOMINAL MM
Identification
NSN: 5310-01-700-6478
NIIN: 017006478
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: BN670M12
Manufacturer: Bossard Intl Inc
General Description
The Washer,flat, cataloged under National Stock Number 5310-01-700-6478, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bossard Intl Inc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter Value NSN 5310-01-700-6478 Primary Part Number BN670M12 Item Name Washer,flat FSC / FSG 5310 / 53 — Nuts and Washers Manufacturer Bossard Intl Inc Status ACTIVE Overall Diameter 24.0 MILLIMETERS NOMINAL MM Cross-Sectional Shape Style RECTANGULAR Outside Diameter 24.0 MILLIMETERS NOMINAL MM Peripheral Shape Style ROUND Material STEEL CORROSION RESISTING OVERALL Center Hole Shape Style ROUND Hole Diameter 13.0 MILLIMETERS NOMINAL MM Thickness 2.5 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition Status ACTIVE DEMIL Code DEMIL A — No Demilitarization Required Hazard No hazard code in the DLA record (HMIC N) Criticality Code X
Cross-Reference Index
Part Number Manufacturer
IN350450XN Illca S.m.i S.r.l. (ITA)
BN670M12 PRIMARY Bossard Intl 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 5310-01-700-6478?
NSN 5310-01-700-6478 is a Washer,flat, manufactured by Bossard Intl Inc, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-700-6478?
NSN 5310-01-700-6478 has 2 manufacturer part numbers on file: IN350450XN (Illca S.m.i S.r.l.), BN670M12 (Bossard Intl Inc).
What are the specifications of BN670M12?
Key specifications for BN670M12: Overall Diameter: 24.0 MILLIMETERS NOMINAL MM; Cross-Sectional Shape Style: RECTANGULAR; Outside Diameter: 24.0 MILLIMETERS NOMINAL MM; Peripheral Shape Style: ROUND. 8 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-700-6478 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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