PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12734Washer,flat

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5310-00-148-4717 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-148-4717 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-148-4717. Primary manufacturer part number: 12734.
Features
  • Washer,flat — FSC 5310
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 0.625 INCHES NOMINAL IN
  • Material: STEEL COMP 1095 OVERALL
  • Surface Treatment: CADMIUM OVERALL
  • Material Document and Classification: AMS 5121 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Center Hole Shape Style: ROUND
  • Hardness Rating: 47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1095 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-148-4717, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5310-00-148-4717
Primary Part Number12734
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.625 INCHES NOMINAL IN
MaterialSTEEL COMP 1095 OVERALL
Surface TreatmentCADMIUM OVERALL
Material Document and ClassificationAMS 5121 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Center Hole Shape StyleROUND
Hardness Rating47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
Peripheral Shape StyleROUND
Heat TreatmentAS FABRICATED
Hole Diameter0.328 INCHES NOMINAL IN
Thickness0.062 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5330-00-062-79914012734 INTERCHANGEABLE
Gasket
Funk Mfg Co Sub of Deere and Co
5950-00-175-730412734 INTERCHANGEABLE
Transformer,power
Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems
5950-00-223-978312734 INTERCHANGEABLE
Coil,radio Frequency
Viking Technologies, Ltd.
2920-00-330-9137A2627 INTERCHANGEABLE
Drive,engine,electrical Starter
Purolator Products Co Div Motor Components, Llc
4930-00-816-5434 INTERCHANGEABLE
Nozzle,fuel and Oil Servicing
1620-00-874-180112734 INTERCHANGEABLE
Sleeve,cylinder
Saf Industries Llc Dba Saf Industries Llc Div Garkenyon
3010-01-008-209812734 INTERCHANGEABLE
Coupling,shaft,flexible
Armstrong S a Ltd
1730-01-144-826512734 INTERCHANGEABLE
Roller Assembly,tandum
Time Manufacturing Company Dba Time Manufacturing Company
5360-01-281-354712734 INTERCHANGEABLE
Spring,helical,compression
Itw Food Equipment Group Llc Dba Hobart Service
5365-01-316-287512734 INTERCHANGEABLE
Shim
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Cross-Reference Index
Part NumberManufacturer
12734 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
5330-00-062-7991INTERCHANGEABLE
GASKET
4012734
5950-00-175-7304INTERCHANGEABLE
TRANSFORMER,POWER
12734
5950-00-223-9783INTERCHANGEABLE
COIL,RADIO FREQUENCY
12734
2920-00-330-9137INTERCHANGEABLE
DRIVE,ENGINE,ELECTRICAL STARTER
A2627
4930-00-816-5434INTERCHANGEABLE
NOZZLE,FUEL AND OIL SERVICING
1620-00-874-1801INTERCHANGEABLE
SLEEVE,CYLINDER
12734
3010-01-008-2098INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
12734
1730-01-144-8265INTERCHANGEABLE
ROLLER ASSEMBLY,TANDUM
12734
5360-01-281-3547INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
12734
5365-01-316-2875INTERCHANGEABLE
SHIM
12734
5940-01-360-6093INTERCHANGEABLE
TERMINAL BOARD
12734

Frequently Asked Questions

What is NSN 5310-00-148-4717?

NSN 5310-00-148-4717 is a Washer,flat, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-148-4717?

NSN 5310-00-148-4717 has 1 cross-referenced part number: 12734 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 5310-00-148-4717?

There are 11 known substitutes for 5310-00-148-4717: 5330-00-062-7991, 5950-00-175-7304, 5950-00-223-9783 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12734?

Key specifications for 12734: Cross-Sectional Shape Style: RECTANGULAR; Overall Diameter: 0.625 INCHES NOMINAL IN; Material: STEEL COMP 1095 OVERALL; Surface Treatment: CADMIUM OVERALL. 11 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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