PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS35338-48 EXCEPT ZINCWasher,lock

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5310-01-335-4901 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-335-4901 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-335-4901. Primary manufacturer part number: MS35338-48 EXCEPT ZINC.
Features
  • Washer,lock — FSC 5310
  • Departure From Cited Document: AS MODIFIED BY ZINC
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL
  • Material: STEEL COMP 1060 OR STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL
  • Surface Treatment: ZINC OVERALL
  • Material Thickness: 0.125 INCHES MINIMUM IN
  • Hardness Rating: 38.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1060 or Steel Comp 1070 or Steel Comp 1078 or Steel Comp 1080 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-335-4901, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-335-4901
Primary Part NumberMS35338-48 EXCEPT ZINC
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusACTIVE
Departure From Cited DocumentAS MODIFIED BY ZINC
Style DesignatorSPLIT HELICAL-RIGHT HAND
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
MaterialSTEEL COMP 1060 OR STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL
Surface TreatmentZINC OVERALL
Material Thickness0.125 INCHES MINIMUM IN
Hardness Rating38.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM
Hole Diameter0.509 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN
Outside Diameter0.873 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5310-00-003-4094 INTERCHANGEABLE
Washer,lock
5310-00-584-5272MS35338-48 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5310-01-565-5501MS35338-48 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5310-01-679-4358MS35338-48 INTERCHANGEABLE
Washer,lock
Acr Electronics, Inc. Dba Acr Electronics Inc
Cross-Reference Index
Part NumberManufacturer
5310PL1239125 Jednolity Indeks Materialowy - Uniform Material Index (POL)
MS35338-48 EXCEPT ZINC PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MS35338-48 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
5310PL1849247 Jednolity Indeks Materialowy - Uniform Material Index (POL)
10KP524 Oshkosh Defense Llc (USA)
Related Parts
5310-00-003-4094INTERCHANGEABLE
WASHER,LOCK
5310-00-584-5272INTERCHANGEABLE
WASHER,LOCK
MS35338-48
5310-01-565-5501INTERCHANGEABLE
WASHER,LOCK
MS35338-48
5310-01-679-4358INTERCHANGEABLE
WASHER,LOCK
MS35338-48

Frequently Asked Questions

What is NSN 5310-01-335-4901?

NSN 5310-01-335-4901 is a Washer,lock, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-335-4901?

NSN 5310-01-335-4901 has 5 cross-referenced part numbers: 5310PL1239125 (Jednolity Indeks Materialowy - Uniform Material Index), MS35338-48 EXCEPT ZINC (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MS35338-48 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 5310PL1849247 (Jednolity Indeks Materialowy - Uniform Material Index), 10KP524 (Oshkosh Defense Llc).

What NSN replaces 5310-01-335-4901?

There are 4 known substitutes for 5310-01-335-4901: 5310-00-003-4094, 5310-00-584-5272, 5310-01-565-5501 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS35338-48 EXCEPT ZINC?

Key specifications for MS35338-48 EXCEPT ZINC: Departure From Cited Document: AS MODIFIED BY ZINC; Style Designator: SPLIT HELICAL-RIGHT HAND; Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL; Material: STEEL COMP 1060 OR STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL. 9 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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