PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51741Washer,flat

Hilti Inc · NSN 5310-01-125-1222 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-125-1222 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-125-1222. Primary manufacturer part number: 51741.
Features
  • Washer,flat — FSC 5310
  • Hole Diameter: 1.438 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • 3 verified cross-references
  • Primary manufacturer: Hilti Inc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-125-1222, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hilti Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-125-1222
Primary Part Number51741
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHilti Inc
StatusACTIVE
Hole Diameter1.438 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5970-00-419-3167 INTERCHANGEABLE
Insulator,plate
5305-00-573-4080 INTERCHANGEABLE
Screw,escape Bridge
5895-00-796-940551741 INTERCHANGEABLE
Tuned Cavity Subassembly
L3harris Technologies, Inc Div Space & Airborne Systems
4330-01-364-879551741 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
Cross-Reference Index
Part NumberManufacturer
51741 PRIMARY Hilti Inc (USA)
R-36 1 7/16 Hilti Inc (USA)
4503392 Hilti Inc (USA)
Related Parts
5970-00-419-3167INTERCHANGEABLE
INSULATOR,PLATE
5305-00-573-4080INTERCHANGEABLE
SCREW,ESCAPE BRIDGE
5895-00-796-9405INTERCHANGEABLE
TUNED CAVITY SUBASSEMBLY
51741
4330-01-364-8795INTERCHANGEABLE
FILTER ELEMENT,FLUID
51741

Frequently Asked Questions

What is NSN 5310-01-125-1222?

NSN 5310-01-125-1222 is a Washer,flat, manufactured by Hilti Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-125-1222?

NSN 5310-01-125-1222 has 3 cross-referenced part numbers: 51741 (Hilti Inc), R-36 1 7/16 (Hilti Inc), 4503392 (Hilti Inc).

What NSN replaces 5310-01-125-1222?

There are 4 known substitutes for 5310-01-125-1222: 5970-00-419-3167, 5305-00-573-4080, 5895-00-796-9405 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51741?

Key specifications for 51741: Hole Diameter: 1.438 INCHES NOMINAL IN; Center Hole Shape Style: ROUND. 2 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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