PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33-112Washer,flat

Federal Screw Products, Inc. · NSN 5310-01-139-0871 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-139-0871 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-139-0871. Primary manufacturer part number: 33-112.
Features
  • Washer,flat — FSC 5310
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material: PAPER OVERALL
  • Peripheral Shape Style: ROUND
  • Thickness: 0.062 INCHES NOMINAL IN
  • Hole Diameter: 0.170 INCHES NOMINAL IN
  • Overall Diameter: 0.375 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Paper Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-139-0871, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Screw Products, Inc.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-139-0871
Primary Part Number33-112
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFederal Screw Products, Inc.
StatusACTIVE
Cross-Sectional Shape StyleRECTANGULAR
MaterialPAPER OVERALL
Peripheral Shape StyleROUND
Thickness0.062 INCHES NOMINAL IN
Hole Diameter0.170 INCHES NOMINAL IN
Overall Diameter0.375 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3120-00-074-19115132504 INTERCHANGEABLE
Bearing,washer,thrust
Rolls-Royce Solutions America Inc
5935-00-296-8766 INTERCHANGEABLE
Plug,tip
2990-00-358-5293 INTERCHANGEABLE
Sleeve,thrust,governor
5999-00-502-7685 INTERCHANGEABLE
Retainer,electrical Shield
3455-00-738-8080 INTERCHANGEABLE
File,rotary
2940-01-006-576533112 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
5340-01-019-2979M-56N INTERCHANGEABLE
Plunger,quick Release
Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier
1630-01-045-5422331-12-1 INTERCHANGEABLE
Brake Piston and Lining Assembly
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
5340-01-160-7775 INTERCHANGEABLE
Catch,clamping
5340-01-302-180033112 INTERCHANGEABLE
Plunger,quick Release
Northwestern Tools, Inc.
Cross-Reference Index
Part NumberManufacturer
33-112 Federal Screw Products, Inc. (USA)
33-112ADX Airdale Express Llc Div Airdale Express (USA)
Related Parts
3120-00-074-1911INTERCHANGEABLE
BEARING,WASHER,THRUST
5132504
5935-00-296-8766INTERCHANGEABLE
PLUG,TIP
2990-00-358-5293INTERCHANGEABLE
SLEEVE,THRUST,GOVERNOR
5999-00-502-7685INTERCHANGEABLE
RETAINER,ELECTRICAL SHIELD
3455-00-738-8080INTERCHANGEABLE
FILE,ROTARY
2940-01-006-5765INTERCHANGEABLE
FILTER ELEMENT,FLUID
33112
5340-01-019-2979INTERCHANGEABLE
PLUNGER,QUICK RELEASE
M-56N
1630-01-045-5422INTERCHANGEABLE
BRAKE PISTON AND LINING ASSEMBLY
331-12-1
5340-01-160-7775INTERCHANGEABLE
CATCH,CLAMPING
5340-01-302-1800INTERCHANGEABLE
PLUNGER,QUICK RELEASE
33112
6515-01-559-2494INTERCHANGEABLE
CONTINUOUS POSITIVE AIRWAY PRESS
33112
4030-01-671-8743INTERCHANGEABLE
SWIVEL,LINK AND JAW
33112

Frequently Asked Questions

What is NSN 5310-01-139-0871?

NSN 5310-01-139-0871 is a Washer,flat, manufactured by Federal Screw Products, Inc., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-139-0871?

NSN 5310-01-139-0871 has 2 cross-referenced part numbers: 33-112 (Federal Screw Products, Inc.), 33-112ADX (Airdale Express Llc Div Airdale Express).

What NSN replaces 5310-01-139-0871?

There are 12 known substitutes for 5310-01-139-0871: 3120-00-074-1911, 5935-00-296-8766, 2990-00-358-5293 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 33-112?

Key specifications for 33-112: Cross-Sectional Shape Style: RECTANGULAR; Material: PAPER OVERALL; Peripheral Shape Style: ROUND; Thickness: 0.062 INCHES NOMINAL IN. 7 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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