NSN 5310-01-133-4874 · NIIN 011334874 · Part number 221B648-11
East/west Industries, Inc. · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 30941
Government record, cited
NSN 5310-01-133-4874 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-133-4874. Manufacturer of record part number: 221B648-11.
Also searched as5310-01-133-4874 ·
5310011334874 ·
NIIN 011334874 ·
01-133-4874 ·
FSC 5310 Nuts and Washers · CAGE 30941 · 221B648-11
Outside Diameter: 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
Thickness at Bolt Hole: 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
Color: BLACK OVERALL
Material: PLASTIC ACETAL OVERALL
Hole Diameter: 0.421 INCHES MINIMUM AND 0.425 INCHES MAXIMUM IN
1 manufacturer part number on file
Identification
NSN: 5310-01-133-4874
NIIN: 011334874
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 221B648-11
Manufacturer: East/west Industries, Inc.
General Description
The Washer,saddle, cataloged under National Stock Number 5310-01-133-4874, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is East/west Industries, Inc.. 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.
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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5310-00-000-0079
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5310-00-000-1146 · Item name not on file
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5310-00-000-3815 · Item name not on file
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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 5310-01-133-4874?
NSN 5310-01-133-4874 is a Washer,saddle, manufactured by East/west Industries, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-133-4874?
NSN 5310-01-133-4874 has 1 manufacturer part number on file: 221B648-11 (East/west Industries, Inc.).
What are the specifications of 221B648-11?
Key specifications for 221B648-11: Overall Height: 0.215 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN; Style Designator: SADDLE; Outside Diameter: 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN; Thickness at Bolt Hole: 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN. 6 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-133-4874 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.