PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9001491Washer,lock

Us Army Aviation and Missile Command · NSN 5310-00-527-4031 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-527-4031 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-527-4031. Primary manufacturer part number: 9001491.
Features
  • Washer,lock — FSC 5310
  • Material Document and Classification: QQ-B-750 COMP A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Nondefinitive Spec/std Data: E CLASS AND 2 STYLE
  • Outside Diameter: 0.296 INCHES NOMINAL IN
  • Material: COPPER ALLOY OVERALL
  • Hardness Rating: 90.0 ROCKWELL B MINIMUM
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Material Thickness: 0.040 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-527-4031, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-527-4031
Primary Part Number9001491
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerUs Army Aviation and Missile Command
StatusCANCELLED
Material Document and ClassificationQQ-B-750 COMP A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nondefinitive Spec/std DataE CLASS AND 2 STYLE
Outside Diameter0.296 INCHES NOMINAL IN
MaterialCOPPER ALLOY OVERALL
Hardness Rating90.0 ROCKWELL B MINIMUM
Style DesignatorSPLIT HELICAL-RIGHT HAND
Material Thickness0.040 INCHES NOMINAL IN
Hole Diameter0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
Surface TreatmentNICKEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5310-00-194-7344 INTERCHANGEABLE
Washer,lock
5310-00-209-1219 INTERCHANGEABLE
Washer,lock
5310-00-209-606904S130504-10 INTERCHANGEABLE
Washer,lock
Herley Chicago Dba Stewart Warner Electronics
5310-00-262-358379988PC7 INTERCHANGEABLE
Washer,lock
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-00-264-1149 INTERCHANGEABLE
Washer,lock
5310-00-550-1675 INTERCHANGEABLE
Washer,lock
5310-00-591-341224-00006-029 INTERCHANGEABLE
Washer,lock
Raytheon Company
5310-00-596-7689 INTERCHANGEABLE
Washer,lock
6520-01-578-73469001491 INTERCHANGEABLE
Baseplate,dental
Henry Schein, Inc.
Cross-Reference Index
Part NumberManufacturer
2074183-2306 Honeywell International Inc Dba Honeywell (USA)
9001491 PRIMARY Us Army Aviation and Missile Command (USA)
FFW84CLASSESTYLE2 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5310-00-194-7344INTERCHANGEABLE
WASHER,LOCK
5310-00-209-1219INTERCHANGEABLE
WASHER,LOCK
5310-00-209-6069INTERCHANGEABLE
WASHER,LOCK
04S130504-10
5310-00-262-3583INTERCHANGEABLE
WASHER,LOCK
79988PC7
5310-00-264-1149INTERCHANGEABLE
WASHER,LOCK
5310-00-550-1675INTERCHANGEABLE
WASHER,LOCK
5310-00-591-3412INTERCHANGEABLE
WASHER,LOCK
24-00006-029
5310-00-596-7689INTERCHANGEABLE
WASHER,LOCK
6520-01-578-7346INTERCHANGEABLE
BASEPLATE,DENTAL
9001491

Frequently Asked Questions

What is NSN 5310-00-527-4031?

NSN 5310-00-527-4031 is a Washer,lock, manufactured by Us Army Aviation and Missile Command, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-527-4031?

NSN 5310-00-527-4031 has 3 cross-referenced part numbers: 2074183-2306 (Honeywell International Inc Dba Honeywell), 9001491 (Us Army Aviation and Missile Command), FFW84CLASSESTYLE2 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5310-00-527-4031?

There are 9 known substitutes for 5310-00-527-4031: 5310-00-194-7344, 5310-00-209-1219, 5310-00-209-6069 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9001491?

Key specifications for 9001491: Material Document and Classification: QQ-B-750 COMP A FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Nondefinitive Spec/std Data: E CLASS AND 2 STYLE; Outside Diameter: 0.296 INCHES NOMINAL IN; Material: COPPER ALLOY OVERALL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-527-4031 still in active supply?

NSN 5310-00-527-4031 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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