NSN 5310-01-290-3475 · NIIN 012903475 · Part number 163B5898
General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 05606
Government record, cited
NSN 5310-01-290-3475 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-290-3475. Manufacturer of record part number: 163B5898.
Also searched as5310-01-290-3475 ·
5310012903475 ·
NIIN 012903475 ·
01-290-3475 ·
FSC 5310 Nuts and Washers · CAGE 05606 · 163B5898
Nearby stock numbers← 5310-01-290-3467 Washer, Lock
·
5310-01-290-3772 Nut Assembly, Self-Locking, Gang C →
5310-01-290-3475 — Nuts and Washers
Features
Washer,flat — FSC 5310
Overall Diameter: 2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM IN
Cross-Sectional Shape Style: RECTANGULAR
Peripheral Shape Style: ROUND
Center Hole Shape Style: ROUND
Hole Diameter: 1.040 INCHES MINIMUM AND 1.060 INCHES MAXIMUM IN
Thickness: 0.080 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN
1 manufacturer part number on file
Identification
NSN: 5310-01-290-3475
NIIN: 012903475
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 163B5898
Manufacturer: General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems
General Description
The Washer,flat, cataloged under National Stock Number 5310-01-290-3475, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems. Government technical data includes 6 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
5310-01-290-3475
Primary Part Number
163B5898
Item Name
Washer,flat
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems
General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (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 5310-01-290-3475?
NSN 5310-01-290-3475 is a Washer,flat, manufactured by General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-290-3475?
NSN 5310-01-290-3475 has 1 manufacturer part number on file: 163B5898 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems).
What are the specifications of 163B5898?
Key specifications for 163B5898: Overall Diameter: 2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Center Hole Shape Style: ROUND. 6 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-290-3475 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.