PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

34-270Washer,flat

Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems · NSN 5310-00-252-9138 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-252-9138 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-252-9138. Primary manufacturer part number: 34-270.
Features
  • Washer,flat — FSC 5310
  • Center Hole Shape Style: ROUND
  • Hole Diameter: 0.703 INCHES NOMINAL IN
  • Material Document and Classification: MIL-R-6855,CL 2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: RUBBER SYNTHETIC OVERALL
  • Overall Diameter: 0.812 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Rubber Synthetic Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-252-9138, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems. 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-252-9138
Primary Part Number34-270
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
StatusACTIVE
Center Hole Shape StyleROUND
Hole Diameter0.703 INCHES NOMINAL IN
Material Document and ClassificationMIL-R-6855,CL 2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialRUBBER SYNTHETIC OVERALL
Overall Diameter0.812 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Hardness Rating55.0 DUROMETER MINIMUM AND 60.0 DUROMETER MAXIMUM
Thickness0.031 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5895-00-041-347134270 INTERCHANGEABLE
Receiver-Transmitter Subassembly
Telephonics Corp
5305-00-057-1158 INTERCHANGEABLE
Screw,cap,hexagon Head
5330-00-154-046161867-139 INTERCHANGEABLE
Seal,plain Encased
Patterson Pump Co Div Patterson Pump Company
3220-01-038-1397 INTERCHANGEABLE
Saw,circular,table Type
5310-01-124-507834270 INTERCHANGEABLE
Nut,plain,hexagon
Barnes Group Inc. Dba Barnes Distribution
Cross-Reference Index
Part NumberManufacturer
57-1158 Seeburg Corp the Seeburg Products Div (USA)
34-270 PRIMARY Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (USA)
Related Parts
5895-00-041-3471INTERCHANGEABLE
RECEIVER-TRANSMITTER SUBASSEMBLY
34270
5305-00-057-1158INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5330-00-154-0461INTERCHANGEABLE
SEAL,PLAIN ENCASED
61867-139
3220-01-038-1397INTERCHANGEABLE
SAW,CIRCULAR,TABLE TYPE
5310-01-124-5078INTERCHANGEABLE
NUT,PLAIN,HEXAGON
34270

Frequently Asked Questions

What is NSN 5310-00-252-9138?

NSN 5310-00-252-9138 is a Washer,flat, manufactured by Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-252-9138?

NSN 5310-00-252-9138 has 2 cross-referenced part numbers: 57-1158 (Seeburg Corp the Seeburg Products Div), 34-270 (Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems).

What NSN replaces 5310-00-252-9138?

There are 5 known substitutes for 5310-00-252-9138: 5895-00-041-3471, 5305-00-057-1158, 5330-00-154-0461 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 34-270?

Key specifications for 34-270: Center Hole Shape Style: ROUND; Hole Diameter: 0.703 INCHES NOMINAL IN; Material Document and Classification: MIL-R-6855,CL 2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: RUBBER SYNTHETIC OVERALL. 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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