PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5610-77-31Washer,flat

Seastrom Manufacturing Co Inc · NSN 5310-01-245-3222 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-245-3222 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-245-3222. Primary manufacturer part number: 5610-77-31.
Features
  • Washer,flat — FSC 5310
  • Peripheral Shape Style: ROUND
  • Center Hole Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Thickness: 0.031 INCHES NOMINAL IN
  • Material: PLASTIC POLYAMIDE NYLON OVERALL
  • Hole Diameter: 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
  • Overall Diameter: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Polyamide Nylon Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-245-3222, 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 7 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-245-3222
Primary Part Number5610-77-31
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSeastrom Manufacturing Co Inc
StatusACTIVE
Peripheral Shape StyleROUND
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Thickness0.031 INCHES NOMINAL IN
MaterialPLASTIC POLYAMIDE NYLON OVERALL
Hole Diameter0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
Overall Diameter0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5331-00-020-018610505762 INTERCHANGEABLE
O-Ring
General Dynamics Land Systems Canadacorp
3110-00-100-0342 INTERCHANGEABLE
Cup,tapered Roller Bearing
3455-00-224-363710130 INTERCHANGEABLE
Cutter,milling,plain
Niagara Cutter Inc
2530-00-319-1401 INTERCHANGEABLE
King Pin,steering K
5360-00-527-086230117 INTERCHANGEABLE
Spring,helical,compression
Pti Technologies Inc.
6125-00-635-8935 INTERCHANGEABLE
Motor-Generator
5950-00-647-3625292-4197G1 INTERCHANGEABLE
Transformer,power
Raytheon Company Div Corp
3040-01-053-76193511-7 INTERCHANGEABLE
Connecting Link,rigid
Tyee Aircraft Inc Div Tyee Aircraft
5360-01-302-9883 INTERCHANGEABLE
Spring,helical,torsion
4820-01-588-776430117 INTERCHANGEABLE
Ball,check
Bourns Inc
Cross-Reference Index
Part NumberManufacturer
5610-77-31 PRIMARY Seastrom Manufacturing Co Inc (USA)
30117 Adams Rite Aerospace, Inc (USA)
Related Parts
5331-00-020-0186INTERCHANGEABLE
O-RING
10505762
3110-00-100-0342INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
3455-00-224-3637INTERCHANGEABLE
CUTTER,MILLING,PLAIN
10130
2530-00-319-1401INTERCHANGEABLE
KING PIN,STEERING K
5360-00-527-0862INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
30117
6125-00-635-8935INTERCHANGEABLE
MOTOR-GENERATOR
5950-00-647-3625INTERCHANGEABLE
TRANSFORMER,POWER
292-4197G1
3040-01-053-7619INTERCHANGEABLE
CONNECTING LINK,RIGID
3511-7
5360-01-302-9883INTERCHANGEABLE
SPRING,HELICAL,TORSION
4820-01-588-7764INTERCHANGEABLE
BALL,CHECK
30117

Frequently Asked Questions

What is NSN 5310-01-245-3222?

NSN 5310-01-245-3222 is a Washer,flat, manufactured by Seastrom Manufacturing Co Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-245-3222?

NSN 5310-01-245-3222 has 2 cross-referenced part numbers: 5610-77-31 (Seastrom Manufacturing Co Inc), 30117 (Adams Rite Aerospace, Inc).

What NSN replaces 5310-01-245-3222?

There are 10 known substitutes for 5310-01-245-3222: 5331-00-020-0186, 3110-00-100-0342, 3455-00-224-3637 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5610-77-31?

Key specifications for 5610-77-31: Peripheral Shape Style: ROUND; Center Hole Shape Style: ROUND; Cross-Sectional Shape Style: RECTANGULAR; Thickness: 0.031 INCHES NOMINAL IN. 7 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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