PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

503A1-3-70Washer,lock

Cardwell Condenser Corp Lapointe-Admiral Div · NSN 5310-00-058-2949 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-058-2949 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-058-2949. Primary manufacturer part number: 503A1-3-70.
Features
  • Washer,lock — FSC 5310
  • Specification/standard Data: 81348-FF-W-84 GOVERNMENT SPECIFICATION
  • Departure From Cited Document: AS MODIFIED BY MATERIAL
  • Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OR QQ-S-763,COND A FED SPEC ALL MATERIAL RESPONSES OVERALL
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Material: STEEL COMP 302 OR STEEL COMP 420 OVERALL
  • Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
  • Outside Diameter: 0.202 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 302 or Steel Comp 420 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-058-2949, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Cardwell Condenser Corp Lapointe-Admiral Div. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 25 commercial cross-references from 22 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-058-2949
Primary Part Number503A1-3-70
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCardwell Condenser Corp Lapointe-Admiral Div
StatusCANCELLED
Specification/standard Data81348-FF-W-84 GOVERNMENT SPECIFICATION
Departure From Cited DocumentAS MODIFIED BY MATERIAL
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OR QQ-S-763,COND A FED SPEC ALL MATERIAL RESPONSES OVERALL
Style DesignatorSPLIT HELICAL-RIGHT HAND
MaterialSTEEL COMP 302 OR STEEL COMP 420 OVERALL
Hardness Rating35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
Outside Diameter0.202 INCHES MAXIMUM IN
Material Thickness0.020 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
Hole Diameter0.115 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN
Nondefinitive Spec/std DataC CLASS AND 1 STYLE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-144-8513104A INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
5330-00-285-68370S1563-2 INTERCHANGEABLE
Seal,plain Encased
Gits Mfg Co Inc
2805-00-633-548026769 INTERCHANGEABLE
Crankshaft,engine
Briggs and Stratton Corp
5930-00-672-9480500064 INTERCHANGEABLE
Switch,push
Sensor Systems, L.l.c. Dba Sensor Systems Llc
5120-00-708-336450064 INTERCHANGEABLE
Handle Jack
Mcneil Ohio Corp
5310-00-734-5661 INTERCHANGEABLE
Washer,lock
5998-00-875-280998204 INTERCHANGEABLE
Circuit Card Assembly
L3harris Technologies, Inc Div Space & Airborne Systems
5310-00-933-8118355-221-0023 INTERCHANGEABLE
Washer,lock
Meggitt (new Hampshire), Inc
5310-00-965-1805 INTERCHANGEABLE
Washer,lock
5310-01-059-944450064 INTERCHANGEABLE
Nut,self-Locking,hexagon
Dana Corp Mobile Fluid Products Div
Cross-Reference Index
Part NumberManufacturer
503A1-3-70 PRIMARY Cardwell Condenser Corp Lapointe-Admiral Div (USA)
310027800 Cardwell Condenser Corp Lapointe-Admiral Div (USA)
26769 Moog Inc (USA)
8908464 Us Army Aviation and Missile Command (USA)
582949 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
24-00044-005 PRIMARY Raytheon Company (USA)
26769 Moog Gmbh (DEU)
092-26769 PRIMARY Moog Inc (USA)
946151-2040 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
310-0278-000 Allmetal Screw Products Corp (USA)
MS35337-78 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
FF-W-84 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
582949 Army Weapons Command Attn Amswe-Ree-S (USA)
CB3500-77 Spec-Tronics (USA)
5M3231-222-51 Hensoldt Sensors Gmbh Div Seps (DEU)
5006-4 New Haven Mfg Corp (USA)
98204 Federal Screw Products, Inc. (USA)
12Z3018-22 Naval Ordnance Standards (USA)
503A1-3 PRIMARY Cardwell Condenser Corp Lapointe-Admiral Div (USA)
310-0278-000 PRIMARY Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
Related Parts
3110-00-144-8513INTERCHANGEABLE
BEARING,BALL,ANNULAR
104A
5330-00-285-6837INTERCHANGEABLE
SEAL,PLAIN ENCASED
0S1563-2
2805-00-633-5480INTERCHANGEABLE
CRANKSHAFT,ENGINE
26769
5930-00-672-9480INTERCHANGEABLE
SWITCH,PUSH
500064
5120-00-708-3364INTERCHANGEABLE
HANDLE JACK
50064
5310-00-734-5661INTERCHANGEABLE
WASHER,LOCK
5998-00-875-2809INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
98204
5310-00-933-8118INTERCHANGEABLE
WASHER,LOCK
355-221-0023
5310-00-965-1805INTERCHANGEABLE
WASHER,LOCK
5310-01-059-9444INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
50064
5360-01-271-4297INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
50064
5136-01-366-4741INTERCHANGEABLE
TAP,THREAD CUTTING
C58595

Frequently Asked Questions

What is NSN 5310-00-058-2949?

NSN 5310-00-058-2949 is a Washer,lock, manufactured by Cardwell Condenser Corp Lapointe-Admiral Div, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-058-2949?

NSN 5310-00-058-2949 has 25 cross-referenced part numbers: 503A1-3-70 (Cardwell Condenser Corp Lapointe-Admiral Div), 310027800 (Cardwell Condenser Corp Lapointe-Admiral Div), 26769 (Moog Inc), 8908464 (Us Army Aviation and Missile Command), 582949 (U S Army Tank Automotive Command Amsta-Im-Mm) and 20 more.

What NSN replaces 5310-00-058-2949?

There are 12 known substitutes for 5310-00-058-2949: 3110-00-144-8513, 5330-00-285-6837, 2805-00-633-5480 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 503A1-3-70?

Key specifications for 503A1-3-70: Specification/standard Data: 81348-FF-W-84 GOVERNMENT SPECIFICATION; Departure From Cited Document: AS MODIFIED BY MATERIAL; Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OR QQ-S-763,COND A FED SPEC ALL MATERIAL RESPONSES OVERALL; Style Designator: SPLIT HELICAL-RIGHT HAND. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-058-2949 still in active supply?

NSN 5310-00-058-2949 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.
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