PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10RBoot

Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging · NSN 1440-00-781-5539 · FSC 1440 · No Item Name Available
Verified by PartsTable
NSN 1440-00-781-5539 — this item is cataloged by the U.S. Government under National Stock Number 1440-00-781-5539. Primary manufacturer part number: 10R.
Features
  • Boot — FSC 1440
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY SLECTED AND TESTED FOR THE POLARIS WEAPON SYSTEM
  • 1 verified cross-reference
  • Primary manufacturer: Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Boot, cataloged under National Stock Number 1440-00-781-5539, is classified within Federal Supply Class 1440 (No Item Name Available) of the Guided Missiles group. The primary manufacturer of record is Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging. Government technical data includes 1 verified specification, 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1440-00-781-5539
Primary Part Number10R
Item NameBoot
FSC / FSG1440 / 14 — No Item Name Available
ManufacturerSafran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging
StatusACTIVE
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY SLECTED AND TESTED FOR THE POLARIS WEAPON SYSTEM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5110-00-234-6554 INTERCHANGEABLE
File,hand
5305-00-290-245810R INTERCHANGEABLE
Screw,machine
Kemp C M Mfg Co Sub of Kemp Co
5310-00-339-365210R INTERCHANGEABLE
Locknut,bearing
Lake Shore Systems, Inc.
6210-00-497-2123 INTERCHANGEABLE
Filter,indicator Light
5110-01-335-157710R INTERCHANGEABLE
File,hand
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-01-587-67021T INTERCHANGEABLE
Wrench,plier
Stanley Tools Div of Stanley Works
1680-01-648-591510R INTERCHANGEABLE
Steering Wheel
Subsalve Usa Llc
Cross-Reference Index
Part NumberManufacturer
10R Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging (USA)
Related Parts
5110-00-234-6554INTERCHANGEABLE
FILE,HAND
5305-00-290-2458INTERCHANGEABLE
SCREW,MACHINE
10R
5310-00-339-3652INTERCHANGEABLE
LOCKNUT,BEARING
10R
6210-00-497-2123INTERCHANGEABLE
FILTER,INDICATOR LIGHT
5110-01-335-1577INTERCHANGEABLE
FILE,HAND
10R
5120-01-587-6702INTERCHANGEABLE
WRENCH,PLIER
1T
1680-01-648-5915INTERCHANGEABLE
STEERING WHEEL
10R

Frequently Asked Questions

What is NSN 1440-00-781-5539?

NSN 1440-00-781-5539 is a Boot, manufactured by Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging, classified under FSC 1440 (No Item Name Available). Status: active.

What are the part numbers for NSN 1440-00-781-5539?

NSN 1440-00-781-5539 has 1 cross-referenced part number: 10R (Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging).

What NSN replaces 1440-00-781-5539?

There are 7 known substitutes for 1440-00-781-5539: 5110-00-234-6554, 5305-00-290-2458, 5310-00-339-3652 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10R?

Key specifications for 10R: Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY SLECTED AND TESTED FOR THE POLARIS WEAPON SYSTEM. 1 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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