PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5607-66Washer,shouldered

Seastrom Manufacturing Co Inc · NSN 5310-01-043-1404 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-043-1404 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-043-1404. Primary manufacturer part number: 5607-66.
Features
  • Washer,shouldered — FSC 5310
  • Style Designator: SHOULDERED
  • Material: PLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL
  • Material Document and Classification: L-P-410 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Hole Diameter: 0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
  • Shoulder Height: 0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
  • Outside Diameter: 0.320 INCHES NOMINAL IN
  • Material Thickness: 0.059 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Polyhexamethylene Adipamide Overall construction
General Description

The Washer,shouldered, cataloged under National Stock Number 5310-01-043-1404, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Seastrom Manufacturing Co Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-043-1404
Primary Part Number5607-66
Item NameWasher,shouldered
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSeastrom Manufacturing Co Inc
StatusACTIVE
Style DesignatorSHOULDERED
MaterialPLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL
Material Document and ClassificationL-P-410 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Hole Diameter0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
Shoulder Height0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
Outside Diameter0.320 INCHES NOMINAL IN
Material Thickness0.059 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
Shoulder Diameter0.182 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5905-00-405-3022 INTERCHANGEABLE
Resistor,fixed,film
6750-01-429-1756 INTERCHANGEABLE
Film,photographic
Cross-Reference Index
Part NumberManufacturer
A364-81 Seastrom Manufacturing Co Inc (USA)
SM-B-876945 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
5607-66 PRIMARY Seastrom Manufacturing Co Inc (USA)
Related Parts
5905-00-405-3022INTERCHANGEABLE
RESISTOR,FIXED,FILM
6750-01-429-1756INTERCHANGEABLE
FILM,PHOTOGRAPHIC

Frequently Asked Questions

What is NSN 5310-01-043-1404?

NSN 5310-01-043-1404 is a Washer,shouldered, manufactured by Seastrom Manufacturing Co Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-043-1404?

NSN 5310-01-043-1404 has 3 cross-referenced part numbers: A364-81 (Seastrom Manufacturing Co Inc), SM-B-876945 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 5607-66 (Seastrom Manufacturing Co Inc).

What NSN replaces 5310-01-043-1404?

There are 2 known substitutes for 5310-01-043-1404: 5905-00-405-3022, 6750-01-429-1756. Verify interchangeability with system specifications before substitution.

What are the specifications of 5607-66?

Key specifications for 5607-66: Style Designator: SHOULDERED; Material: PLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL; Material Document and Classification: L-P-410 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Hole Diameter: 0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN. 8 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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