NSN 5310-01-113-7581 · NIIN 011137581 · Part number 50-290-0538-2-C
Timken Gears & Services Inc. Div Philadelphia Gear · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 17454
Government record, cited
NSN 5310-01-113-7581 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-113-7581. Manufacturer of record part number: 50-290-0538-2-C.
Also searched as5310-01-113-7581 ·
5310011137581 ·
NIIN 011137581 ·
01-113-7581 ·
FSC 5310 Nuts and Washers · CAGE 17454 · 50-290-0538-2-C
Manufacturer: Timken Gears & Services Inc. Div Philadelphia Gear
General Description
The Washer,flat, cataloged under National Stock Number 5310-01-113-7581, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Timken Gears & Services Inc. Div Philadelphia Gear. 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
Parameter
Value
NSN
5310-01-113-7581
Primary Part Number
50-290-0538-2-C
Item Name
Washer,flat
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Timken Gears & Services Inc. Div Philadelphia Gear
Timken Gears & Services Inc. Div Philadelphia Gear (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 5310-01-113-7581?
NSN 5310-01-113-7581 is a Washer,flat, manufactured by Timken Gears & Services Inc. Div Philadelphia Gear, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-113-7581?
NSN 5310-01-113-7581 has 1 manufacturer part number on file: 50-290-0538-2-C (Timken Gears & Services Inc. Div Philadelphia Gear).
What are the specifications of 50-290-0538-2-C?
Key specifications for 50-290-0538-2-C: Overall Diameter: 4.250 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: COPPER ALLOY OVERALL. 7 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-113-7581 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.