PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

53427Washer,flat

Kleinschmidt Inc · NSN 5310-00-595-6311 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-595-6311 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-595-6311. Primary manufacturer part number: 53427.
Features
  • Washer,flat — FSC 5310
  • Center Hole Width: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
  • Material: COPPER ALLOY OVERALL
  • Peripheral Shape Style: RECTANGULAR
  • Center Hole Length: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
  • Thickness: 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Center Hole Shape Style: RECTANGULAR
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-595-6311, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Kleinschmidt Inc. Government technical data includes 9 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-595-6311
Primary Part Number53427
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerKleinschmidt Inc
StatusACTIVE
Center Hole Width0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
MaterialCOPPER ALLOY OVERALL
Peripheral Shape StyleRECTANGULAR
Center Hole Length0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
Thickness0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Center Hole Shape StyleRECTANGULAR
Length0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
Width Across Flats0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4730-00-093-950753427 INTERCHANGEABLE
Restrictor,fluid Flow
Goodrich Corporation
3455-00-243-2177TABLE 15, 609 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
The American Society of Mechanical Engineers
5840-00-505-297953427 INTERCHANGEABLE
Conductor Section,tuned Cavity
L3harris Technologies, Inc Div Space & Airborne Systems
5950-01-334-481053427 INTERCHANGEABLE
Reactor
Standex Electronics, Inc.
6145-01-367-849753427 INTERCHANGEABLE
Cable,radio Frequency
Semflex, Inc.
4520-01-377-744453427 INTERCHANGEABLE
Heating Element,electrical,nonim
Indeeco Llc Dba Indeeco
Cross-Reference Index
Part NumberManufacturer
53427 Kleinschmidt Inc (USA)
Related Parts
4730-00-093-9507INTERCHANGEABLE
RESTRICTOR,FLUID FLOW
53427
3455-00-243-2177INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
TABLE 15, 609
5840-00-505-2979INTERCHANGEABLE
CONDUCTOR SECTION,TUNED CAVITY
53427
5950-01-334-4810INTERCHANGEABLE
REACTOR
53427
6145-01-367-8497INTERCHANGEABLE
CABLE,RADIO FREQUENCY
53427
4520-01-377-7444INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
53427

Frequently Asked Questions

What is NSN 5310-00-595-6311?

NSN 5310-00-595-6311 is a Washer,flat, manufactured by Kleinschmidt Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-595-6311?

NSN 5310-00-595-6311 has 1 cross-referenced part number: 53427 (Kleinschmidt Inc).

What NSN replaces 5310-00-595-6311?

There are 6 known substitutes for 5310-00-595-6311: 4730-00-093-9507, 3455-00-243-2177, 5840-00-505-2979 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 53427?

Key specifications for 53427: Center Hole Width: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Material: COPPER ALLOY OVERALL; Peripheral Shape Style: RECTANGULAR; Center Hole Length: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN. 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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