NSN 5310-01-657-2520 · NIIN 016572520 · Part number BN763-M5
Bossard Ltd Fasteners · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE S7023
Government record, cited
NSN 5310-01-657-2520 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-657-2520. Manufacturer of record part number: BN763-M5.
Also searched as5310-01-657-2520 ·
5310016572520 ·
NIIN 016572520 ·
01-657-2520 ·
FSC 5310 Nuts and Washers · CAGE S7023 · BN763-M5 · BN763M5
Hole Diameter: 5.1 MILLIMETERS MINIMUM AND 5.4 MILLIMETERS MAXIMUM MM
2 manufacturer part numbers on file
Identification
NSN: 5310-01-657-2520
NIIN: 016572520
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: BN763-M5
Manufacturer: Bossard Ltd Fasteners
General Description
The Washer,lock, cataloged under National Stock Number 5310-01-657-2520, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bossard Ltd Fasteners. Government technical data includes 6 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
5310-01-657-2520
Primary Part Number
BN763-M5
Item Name
Washer,lock
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Bossard Ltd Fasteners
Status
ACTIVE
Style Designator
SPLIT HELICAL-RIGHT HAND
Outside Diameter
9.2 MILLIMETERS MAXIMUM MM
Major Thickness
1.2 MILLIMETERS MAXIMUM MM
Surface Treatment
ZINC OVERALL
Material
STEEL OVERALL
Hole Diameter
5.1 MILLIMETERS MINIMUM AND 5.4 MILLIMETERS MAXIMUM MM
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 5310-01-657-2520?
NSN 5310-01-657-2520 is a Washer,lock, manufactured by Bossard Ltd Fasteners, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-657-2520?
NSN 5310-01-657-2520 has 2 manufacturer part numbers on file: BN763-M5 (Bossard Ltd Fasteners), BN763M5 (Bossard Intl Inc).
What are the specifications of BN763-M5?
Key specifications for BN763-M5: Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 9.2 MILLIMETERS MAXIMUM MM; Major Thickness: 1.2 MILLIMETERS MAXIMUM MM; Surface Treatment: ZINC OVERALL. 6 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-657-2520 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.