PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5/8 LOCKWASHERWasher,lock

Drc Acquisition Inc · NSN 5310-00-317-0765 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-317-0765 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-317-0765. Primary manufacturer part number: 5/8 LOCKWASHER.
Features
  • Washer,lock — FSC 5310
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Hole Diameter: 0.628 INCHES NOMINAL IN
  • Material Thickness: 0.165 INCHES NOMINAL IN
  • Outside Diameter: 1.045 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • 2 verified cross-references
  • Primary manufacturer: Drc Acquisition Inc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-317-0765, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Drc Acquisition Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN5310-00-317-0765
Primary Part Number5/8 LOCKWASHER
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerDrc Acquisition Inc
StatusACTIVE
Style DesignatorSPLIT HELICAL-RIGHT HAND
Hole Diameter0.628 INCHES NOMINAL IN
Material Thickness0.165 INCHES NOMINAL IN
Outside Diameter1.045 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-016-7582 INTERCHANGEABLE
Contact Positioner,terminal Crim
5330-00-251-323155104 INTERCHANGEABLE
Gasket
H20 Tank Inc U S Motors Div
5360-00-260-6666858272 INTERCHANGEABLE
Spring,helical,compression
Dana Off Highway Products, Llc
5306-00-354-1673 INTERCHANGEABLE
Bolt,externally Relieved Body
4710-00-435-926555-104 INTERCHANGEABLE
Tube,calibration,vacuum
Teledyne Instruments, Inc. Dba Teledyne Hastings Instruments Div Teledyne Hastings Instruments
5330-00-640-9140 INTERCHANGEABLE
Seal,plain Encased
5310-00-695-358755104 INTERCHANGEABLE
Washer,nonmetallic
Malabar
2530-01-249-5548 INTERCHANGEABLE
Weight,wheel Balancing
5995-01-332-176255104 INTERCHANGEABLE
Cable Assembly,radio Frequency
Semflex, Inc.
4720-01-391-387555104E1110A INTERCHANGEABLE
Hose Assembly,air Breathing
Hydraflow
Cross-Reference Index
Part NumberManufacturer
55104 Drc Acquisition Inc (USA)
5/8 LOCKWASHER PRIMARY Drc Acquisition Inc (USA)
Related Parts
5120-00-016-7582INTERCHANGEABLE
CONTACT POSITIONER,TERMINAL CRIM
5330-00-251-3231INTERCHANGEABLE
GASKET
55104
5360-00-260-6666INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
858272
5306-00-354-1673INTERCHANGEABLE
BOLT,EXTERNALLY RELIEVED BODY
4710-00-435-9265INTERCHANGEABLE
TUBE,CALIBRATION,VACUUM
55-104
5330-00-640-9140INTERCHANGEABLE
SEAL,PLAIN ENCASED
5310-00-695-3587INTERCHANGEABLE
WASHER,NONMETALLIC
55104
2530-01-249-5548INTERCHANGEABLE
WEIGHT,WHEEL BALANCING
5995-01-332-1762INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
55104
4720-01-391-3875INTERCHANGEABLE
HOSE ASSEMBLY,AIR BREATHING
55104E1110A
4720-01-391-3877INTERCHANGEABLE
HOSE ASSEMBLY,AIR BREATHING
4720-01-391-3879INTERCHANGEABLE
HOSE ASSEMBLY,AIR BREATHING
55104E0465A

Frequently Asked Questions

What is NSN 5310-00-317-0765?

NSN 5310-00-317-0765 is a Washer,lock, manufactured by Drc Acquisition Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-317-0765?

NSN 5310-00-317-0765 has 2 cross-referenced part numbers: 55104 (Drc Acquisition Inc), 5/8 LOCKWASHER (Drc Acquisition Inc).

What NSN replaces 5310-00-317-0765?

There are 12 known substitutes for 5310-00-317-0765: 5120-00-016-7582, 5330-00-251-3231, 5360-00-260-6666 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5/8 LOCKWASHER?

Key specifications for 5/8 LOCKWASHER: Style Designator: SPLIT HELICAL-RIGHT HAND; Hole Diameter: 0.628 INCHES NOMINAL IN; Material Thickness: 0.165 INCHES NOMINAL IN; Outside Diameter: 1.045 INCHES NOMINAL IN. 5 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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