PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33191Washer,spring Tension

Fastenal Company Dba Fastenal Co · NSN 5310-01-556-6657 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-556-6657 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-556-6657. Primary manufacturer part number: 33191.
Features
  • Washer,spring Tension — FSC 5310
  • 2 verified cross-references
  • Primary manufacturer: Fastenal Company Dba Fastenal Co
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Mechanical energy storage
  • Vibration dampening
General Description

The Washer,spring Tension, cataloged under National Stock Number 5310-01-556-6657, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fastenal Company Dba Fastenal Co. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-556-6657
Primary Part Number33191
Item NameWasher,spring Tension
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFastenal Company Dba Fastenal Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5325-00-282-007433191 INTERCHANGEABLE
Ring,retaining
Dressta North America Ltd
2910-00-444-182033191 INTERCHANGEABLE
Filter,fluid
Wix Corp
3110-00-516-5289203TF INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
5331-00-815-43921775189PC1 INTERCHANGEABLE
O-Ring
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6150-01-147-45043319-1 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Honeywell International Inc. Dba Honeywell Div Aerospace -Olathe Hums Div
1680-01-596-192433-191 INTERCHANGEABLE
Manifold,spec
Hydro-Aire Aerospace Corp
Cross-Reference Index
Part NumberManufacturer
5320000090-00 Nd Defense Llc (USA)
33191 PRIMARY Fastenal Company Dba Fastenal Co (USA)
Related Parts
5325-00-282-0074INTERCHANGEABLE
RING,RETAINING
33191
2910-00-444-1820INTERCHANGEABLE
FILTER,FLUID
33191
3110-00-516-5289INTERCHANGEABLE
BEARING,BALL,ANNULAR
203TF
5331-00-815-4392INTERCHANGEABLE
O-RING
1775189PC1
6150-01-147-4504INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
3319-1
1680-01-596-1924INTERCHANGEABLE
MANIFOLD,SPEC
33-191

Frequently Asked Questions

What is NSN 5310-01-556-6657?

NSN 5310-01-556-6657 is a Washer,spring Tension, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-556-6657?

NSN 5310-01-556-6657 has 2 cross-referenced part numbers: 5320000090-00 (Nd Defense Llc), 33191 (Fastenal Company Dba Fastenal Co).

What NSN replaces 5310-01-556-6657?

There are 6 known substitutes for 5310-01-556-6657: 5325-00-282-0074, 2910-00-444-1820, 3110-00-516-5289 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 33191?

Key specifications for 33191: End Item Identification: MRAP - UNIQUE NSN - MAXXPRO CAT I. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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