PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SCB645752-158Washer,lock

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5310-00-087-3055 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-087-3055 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-087-3055. Primary manufacturer part number: SCB645752-158.
Features
  • Washer,lock — FSC 5310
  • Material: STEEL COMP 420 OVERALL
  • Surface Treatment: PASSIVATE OVERALL
  • Material Thickness: 0.062 INCHES NOMINAL IN
  • Hole Diameter: 0.255 INCHES MINIMUM AND 0.263 INCHES MAXIMUM IN
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
  • Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 420 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-087-3055, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 9 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-087-3055
Primary Part NumberSCB645752-158
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
MaterialSTEEL COMP 420 OVERALL
Surface TreatmentPASSIVATE OVERALL
Material Thickness0.062 INCHES NOMINAL IN
Hole Diameter0.255 INCHES MINIMUM AND 0.263 INCHES MAXIMUM IN
Style DesignatorSPLIT HELICAL-RIGHT HAND
Hardness Rating35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Outside Diameter0.489 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-933-8121004-003005-020 INTERCHANGEABLE
Washer,lock
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
Cross-Reference Index
Part NumberManufacturer
NAS1640-416 Zf Industrieantriebe Witten Gmbh (DEU)
SCB645752-158 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
Related Parts
5310-00-933-8121INTERCHANGEABLE
WASHER,LOCK
004-003005-020

Frequently Asked Questions

What is NSN 5310-00-087-3055?

NSN 5310-00-087-3055 is a Washer,lock, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-087-3055?

NSN 5310-00-087-3055 has 2 cross-referenced part numbers: NAS1640-416 (Zf Industrieantriebe Witten Gmbh), SCB645752-158 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir).

What NSN replaces 5310-00-087-3055?

There is 1 known substitute for 5310-00-087-3055: 5310-00-933-8121. Verify interchangeability with system specifications before substitution.

What are the specifications of SCB645752-158?

Key specifications for SCB645752-158: Material: STEEL COMP 420 OVERALL; Surface Treatment: PASSIVATE OVERALL; Material Thickness: 0.062 INCHES NOMINAL IN; Hole Diameter: 0.255 INCHES MINIMUM AND 0.263 INCHES MAXIMUM IN. 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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