NSN 5310-01-661-3489 · NIIN 016613489 · Part number 4307330
Oshkosh Defense Llc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 75Q65
Government record, cited
NSN 5310-01-661-3489 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-661-3489. Manufacturer of record part number: 4307330.
Also searched as5310-01-661-3489 ·
5310016613489 ·
NIIN 016613489 ·
01-661-3489 ·
FSC 5310 Nuts and Washers · CAGE 75Q65 · 4307330
Overall Diameter: 14.57 MILLIMETERS MINIMUM AND 15.00 MILLIMETERS MAXIMUM MM
Cross-Sectional Shape Style: RECTANGULAR
Peripheral Shape Style: RECTANGULAR
Material: STEEL CORROSION RESISTING OVERALL
Center Hole Shape Style: ROUND
Identification
NSN: 5310-01-661-3489
NIIN: 016613489
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 4307330
Manufacturer: Oshkosh Defense Llc
General Description
The Washer,flat, cataloged under National Stock Number 5310-01-661-3489, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 9 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
5310-01-661-3489
Primary Part Number
4307330
Item Name
Washer,flat
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Oshkosh Defense Llc
Status
ACTIVE
Width Across Flats
15.00 MILLIMETERS NOMINAL MM
Length
15.00 MILLIMETERS NOMINAL MM
Overall Diameter
14.57 MILLIMETERS MINIMUM AND 15.00 MILLIMETERS MAXIMUM MM
Cross-Sectional Shape Style
RECTANGULAR
Peripheral Shape Style
RECTANGULAR
Material
STEEL CORROSION RESISTING OVERALL
Center Hole Shape Style
ROUND
Hole Diameter
8.40 MILLIMETERS MINIMUM AND 8.62 MILLIMETERS MAXIMUM MM
Thickness
1.40 MILLIMETERS MINIMUM AND 1.80 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 5310-01-661-3489?
NSN 5310-01-661-3489 is a Washer,flat, manufactured by Oshkosh Defense Llc, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-661-3489?
NSN 5310-01-661-3489 has 1 manufacturer part number on file: 4307330 (Oshkosh Defense Llc).
What are the specifications of 4307330?
Key specifications for 4307330: Width Across Flats: 15.00 MILLIMETERS NOMINAL MM; Length: 15.00 MILLIMETERS NOMINAL MM; Overall Diameter: 14.57 MILLIMETERS MINIMUM AND 15.00 MILLIMETERS MAXIMUM MM; Cross-Sectional Shape Style: RECTANGULAR. 9 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-661-3489 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.