PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

939WES4Washer,lock

L3 Aviation Products, Inc. Dba L3 Technologies · NSN 5310-00-058-3599 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-058-3599 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-058-3599. Primary manufacturer part number: 939WES4.
Features
  • Washer,lock — FSC 5310
  • Outside Diameter: 0.245 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL COMP 410 OVERALL
  • Surface Treatment Document and Classification: QQ-P-35 TY 2 OR TY 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
  • Material Thickness: 0.015 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
  • Surface Treatment: PASSIVATE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 410 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-058-3599, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L3 Aviation Products, Inc. Dba L3 Technologies. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 27 commercial cross-references from 23 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-058-3599
Primary Part Number939WES4
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerL3 Aviation Products, Inc. Dba L3 Technologies
StatusCANCELLED
Outside Diameter0.245 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 410 OVERALL
Surface Treatment Document and ClassificationQQ-P-35 TY 2 OR TY 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Hardness Rating40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
Material Thickness0.015 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
Surface TreatmentPASSIVATE OVERALL
Hole Diameter0.115 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN
Style DesignatorFLAT EXTERNAL TEETH
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5310-00-209-5116 INTERCHANGEABLE
Washer,lock
5355-00-397-6728 INTERCHANGEABLE
Knob
4720-00-497-5350011073 INTERCHANGEABLE
Hose Assembly,metallic
Senior Operations Llc Div Senior Aerospace Ssp
6130-00-500-09741443 INTERCHANGEABLE
Rectifier,metallic
Nault Robert Dba Tdr Electronics
5815-00-737-0791160400 INTERCHANGEABLE
Contact Assembly
Telemechanics Inc
5340-00-869-227882355 INTERCHANGEABLE
Standoff,threaded,spacing
Cae Usa Inc.
6625-00-922-9302067-0537-00 INTERCHANGEABLE
Divider,power,radio Frequency
Tektronix, Inc.
5305-00-992-5787 INTERCHANGEABLE
Screw,cap,socket Head
4730-01-435-63531604-00 INTERCHANGEABLE
Nut,union
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4010-01-602-0501 INTERCHANGEABLE
Wire Rope Assembly,single Leg
Cross-Reference Index
Part NumberManufacturer
939WES4 L3 Aviation Products, Inc. Dba L3 Technologies (USA)
5164004-00 Zf Industrieantriebe Witten Gmbh (DEU)
MS35335-57 Wass Srl (ITA)
824636-1 Zf Industrieantriebe Witten Gmbh (DEU)
823-55 Andrea Electronics Corporation (USA)
103A906031 L3 Technologies, Inc. Div L3 Keo (USA)
000-060-006 Korry Electronics Co (USA)
010056-057 Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (USA)
144300150 Elac Sonar Gmbh (DEU)
144300150 Honeywell Regelsysteme Gmbh Geschaftsbereich Sondertechnik (DEU)
5310000583599 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
C16-0427-201 Andrea Electronics Corporation (USA)
011073 Diehl Defence Gmbh & Co. Kg (DEU)
411101-57 Raytheon Company Dba Raytheon (USA)
824636-1 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
824636-1 Lockheed Martin Corporation Div Rms (USA)
MS35335-51 Zf Industrieantriebe Witten Gmbh (DEU)
5310PL0712486 Jednolity Indeks Materialowy - Uniform Material Index (POL)
10116524 Nimikkeistokeskus Ncb Finland (FIN)
1604+00 Itw Shakeproof Automotive Products (USA)
Related Parts
5310-00-209-5116INTERCHANGEABLE
WASHER,LOCK
5355-00-397-6728INTERCHANGEABLE
KNOB
4720-00-497-5350INTERCHANGEABLE
HOSE ASSEMBLY,METALLIC
011073
6130-00-500-0974INTERCHANGEABLE
RECTIFIER,METALLIC
1443
5815-00-737-0791INTERCHANGEABLE
CONTACT ASSEMBLY
160400
5340-00-869-2278INTERCHANGEABLE
STANDOFF,THREADED,SPACING
82355
6625-00-922-9302INTERCHANGEABLE
DIVIDER,POWER,RADIO FREQUENCY
067-0537-00
5305-00-992-5787INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
4730-01-435-6353INTERCHANGEABLE
NUT,UNION
1604-00
4010-01-602-0501INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG
6510-01-606-5976INTERCHANGEABLE
DRESSING,NASAL
RR551

Frequently Asked Questions

What is NSN 5310-00-058-3599?

NSN 5310-00-058-3599 is a Washer,lock, manufactured by L3 Aviation Products, Inc. Dba L3 Technologies, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-058-3599?

NSN 5310-00-058-3599 has 27 cross-referenced part numbers: 939WES4 (L3 Aviation Products, Inc. Dba L3 Technologies), 5164004-00 (Zf Industrieantriebe Witten Gmbh), MS35335-57 (Wass Srl), 824636-1 (Zf Industrieantriebe Witten Gmbh), 823-55 (Andrea Electronics Corporation) and 22 more.

What NSN replaces 5310-00-058-3599?

There are 11 known substitutes for 5310-00-058-3599: 5310-00-209-5116, 5355-00-397-6728, 4720-00-497-5350 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 939WES4?

Key specifications for 939WES4: Outside Diameter: 0.245 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL; Material: STEEL COMP 410 OVERALL; Surface Treatment Document and Classification: QQ-P-35 TY 2 OR TY 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-058-3599 still in active supply?

NSN 5310-00-058-3599 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com