PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NL6Washer,lock

Fabory Usa Ltd. · NSN 5310-01-568-3911 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-568-3911 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-568-3911. Primary manufacturer part number: NL6.
Features
  • Washer,lock — FSC 5310
  • Hardness Rating: 72.0 ROCKWELL A MINIMUM AND 77.0 ROCKWELL A MAXIMUM
  • Hole Diameter: 6.5 MILLIMETERS NOMINAL MM
  • Outside Diameter: 10.8 MILLIMETERS NOMINAL MM
  • Material: STEEL OVERALL
  • Surface Treatment: ZINC OVERALL
  • Surface Treatment Document and Classification: ISO 2081 (ISO/R FE/ZN 8 C2) NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Style Designator: TWO PIECE INTERLOCKING
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 5310-01-568-3911, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fabory Usa Ltd.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-568-3911
Primary Part NumberNL6
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFabory Usa Ltd.
StatusACTIVE
Hardness Rating72.0 ROCKWELL A MINIMUM AND 77.0 ROCKWELL A MAXIMUM
Hole Diameter6.5 MILLIMETERS NOMINAL MM
Outside Diameter10.8 MILLIMETERS NOMINAL MM
MaterialSTEEL OVERALL
Surface TreatmentZINC OVERALL
Surface Treatment Document and ClassificationISO 2081 (ISO/R FE/ZN 8 C2) NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL
Style DesignatorTWO PIECE INTERLOCKING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5310-01-501-3375 INTERCHANGEABLE
Washer,lock
5310-01-501-7502NL10 INTERCHANGEABLE
Washer,lock
Fabory Usa Ltd.
5310-01-501-7515 INTERCHANGEABLE
Washer,lock
5310-01-506-2080NL12SP INTERCHANGEABLE
Washer,lock
Fabory Usa Ltd.
5310-01-528-1442NL8SP INTERCHANGEABLE
Washer,lock
Fabory Usa Ltd.
5310-01-556-03746434101-25M1 INTERCHANGEABLE
Washer,lock
Bae Systems Land & Armaments L.p.
5310-01-570-6417 INTERCHANGEABLE
Washer,lock
5310-01-575-3786NL18 INTERCHANGEABLE
Washer,lock
Fabory Usa Ltd.
5310-01-575-3805NL10SP INTERCHANGEABLE
Washer,lock
Fabory Usa Ltd.
5310-01-576-516812422608-023 INTERCHANGEABLE
Washer,lock
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
NL6 PRIMARY Fabory Usa Ltd. (USA)
NL6 Nord Lock Inc (USA)
12422608 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
12422608-005 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Related Parts
5310-01-501-3375INTERCHANGEABLE
WASHER,LOCK
5310-01-501-7502INTERCHANGEABLE
WASHER,LOCK
NL10
5310-01-501-7515INTERCHANGEABLE
WASHER,LOCK
5310-01-506-2080INTERCHANGEABLE
WASHER,LOCK
NL12SP
5310-01-528-1442INTERCHANGEABLE
WASHER,LOCK
NL8SP
5310-01-556-0374INTERCHANGEABLE
WASHER,LOCK
6434101-25M1
5310-01-570-6417INTERCHANGEABLE
WASHER,LOCK
5310-01-575-3786INTERCHANGEABLE
WASHER,LOCK
NL18
5310-01-575-3805INTERCHANGEABLE
WASHER,LOCK
NL10SP
5310-01-576-5168INTERCHANGEABLE
WASHER,LOCK
12422608-023
5310-01-577-5909INTERCHANGEABLE
WASHER,LOCK
NL22SP

Frequently Asked Questions

What is NSN 5310-01-568-3911?

NSN 5310-01-568-3911 is a Washer,lock, manufactured by Fabory Usa Ltd., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-568-3911?

NSN 5310-01-568-3911 has 4 cross-referenced part numbers: NL6 (Fabory Usa Ltd.), NL6 (Nord Lock Inc), 12422608 (U S Army Tank Automotive Command Amsta-Im-Mm), 12422608-005 (U S Army Tank Automotive Command Amsta-Im-Mm).

What NSN replaces 5310-01-568-3911?

There are 11 known substitutes for 5310-01-568-3911: 5310-01-501-3375, 5310-01-501-7502, 5310-01-501-7515 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NL6?

Key specifications for NL6: Overall Height: 1.80 MILLIMETERS NOMINAL MM; Hardness Rating: 72.0 ROCKWELL A MINIMUM AND 77.0 ROCKWELL A MAXIMUM; Hole Diameter: 6.5 MILLIMETERS NOMINAL MM; Outside Diameter: 10.8 MILLIMETERS NOMINAL MM. 10 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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