PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5603-91Washer,shouldered

Seastrom Manufacturing Co Inc · NSN 5310-01-624-5148 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-624-5148 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-624-5148. Primary manufacturer part number: 5603-91.
Features
  • Washer,shouldered — FSC 5310
  • Shoulder Height: 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
  • Hole Diameter: 0.198 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN
  • Shoulder Diameter: 0.265 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN
  • Outside Diameter: 0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
  • Material: GLASS OVERALL
  • Style Designator: SHOULDERED
  • 1 verified cross-reference
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Glass Overall construction
General Description

The Washer,shouldered, cataloged under National Stock Number 5310-01-624-5148, 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 6 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-624-5148
Primary Part Number5603-91
Item NameWasher,shouldered
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSeastrom Manufacturing Co Inc
StatusACTIVE
Shoulder Height0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
Hole Diameter0.198 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN
Shoulder Diameter0.265 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN
Outside Diameter0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
MaterialGLASS OVERALL
Style DesignatorSHOULDERED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5915-00-284-4385560391 INTERCHANGEABLE
Filter,high Pass
Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)
1670-00-572-768960A113C24-1 INTERCHANGEABLE
Cone,parachute Pack
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
1660-00-911-9475560391 INTERCHANGEABLE
Retainer,diaphragm
Hamilton Sundstrand Corporation Dba Collins Aerospace
Cross-Reference Index
Part NumberManufacturer
5603-91 PRIMARY Seastrom Manufacturing Co Inc (USA)
Related Parts
5915-00-284-4385INTERCHANGEABLE
FILTER,HIGH PASS
560391
1670-00-572-7689INTERCHANGEABLE
CONE,PARACHUTE PACK
60A113C24-1
1660-00-911-9475INTERCHANGEABLE
RETAINER,DIAPHRAGM
560391

Frequently Asked Questions

What is NSN 5310-01-624-5148?

NSN 5310-01-624-5148 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 5310-01-624-5148?

NSN 5310-01-624-5148 has 1 cross-referenced part number: 5603-91 (Seastrom Manufacturing Co Inc).

What NSN replaces 5310-01-624-5148?

There are 3 known substitutes for 5310-01-624-5148: 5915-00-284-4385, 1670-00-572-7689, 1660-00-911-9475. Verify interchangeability with system specifications before substitution.

What are the specifications of 5603-91?

Key specifications for 5603-91: Overall Height: 0.094 INCHES NOMINAL IN; Shoulder Height: 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN; Hole Diameter: 0.198 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN; Shoulder Diameter: 0.265 INCHES MINIMUM AND 0.285 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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