PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3900Arm,shoulder Harness

Hardman Aircraft Inc · NSN 1680-00-546-0929 · FSC 1680 · No Item Name Available
Verified by PartsTable
NSN 1680-00-546-0929 — this item is cataloged by the U.S. Government under National Stock Number 1680-00-546-0929. Primary manufacturer part number: 3900.
Features
  • Arm,shoulder Harness — FSC 1680
  • General Characteristics Item Description: ALUMINUM ALLOY 6061 T6; 0.125 IN. H IN
  • 3 verified cross-references
  • Primary manufacturer: Hardman Aircraft Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Arm,shoulder Harness, cataloged under National Stock Number 1680-00-546-0929, is classified within Federal Supply Class 1680 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Hardman Aircraft Inc. Government technical data includes 1 verified specification, 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1680-00-546-0929
Primary Part Number3900
Item NameArm,shoulder Harness
FSC / FSG1680 / 16 — No Item Name Available
ManufacturerHardman Aircraft Inc
StatusACTIVE
General Characteristics Item DescriptionALUMINUM ALLOY 6061 T6; 0.125 IN. H IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
7510-00-129-57213900 INTERCHANGEABLE
Ribbon,inking
Supplies Intl
3030-00-528-4594 INTERCHANGEABLE
Belt,v
6625-00-581-8329 INTERCHANGEABLE
Ammeter
6145-00-635-4598 INTERCHANGEABLE
Cable,power,electrical
4320-00-843-2169 INTERCHANGEABLE
Pump,centrifugal
5325-00-846-84843900 INTERCHANGEABLE
Insert,screw Thread
Telemechanics Inc
3110-00-953-0243 INTERCHANGEABLE
Bearing,bronze
1560-00-974-84853900 INTERCHANGEABLE
Flange,adapter
Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
7510-01-026-16904104 RED 2 IN. INTERCHANGEABLE
Tape,pressure Sensitive Adhesive
Valley Industrial Products Inc
6625-01-069-78123900 INTERCHANGEABLE
Test Set,telecommunication Syste
Hekimian Laboratories Inc
Cross-Reference Index
Part NumberManufacturer
3900 Hardman Aircraft Inc (USA)
2448330 The Boeing Company (USA)
2448330 The Boeing Company (USA)
Related Parts
7510-00-129-5721INTERCHANGEABLE
RIBBON,INKING
3900
3030-00-528-4594INTERCHANGEABLE
BELT,V
6625-00-581-8329INTERCHANGEABLE
AMMETER
6145-00-635-4598INTERCHANGEABLE
CABLE,POWER,ELECTRICAL
4320-00-843-2169INTERCHANGEABLE
PUMP,CENTRIFUGAL
5325-00-846-8484INTERCHANGEABLE
INSERT,SCREW THREAD
3900
3110-00-953-0243INTERCHANGEABLE
BEARING,BRONZE
1560-00-974-8485INTERCHANGEABLE
FLANGE,ADAPTER
3900
7510-01-026-1690INTERCHANGEABLE
TAPE,PRESSURE SENSITIVE ADHESIVE
4104 RED 2 IN.
6625-01-069-7812INTERCHANGEABLE
TEST SET,TELECOMMUNICATION SYSTE
3900
5805-01-252-7677INTERCHANGEABLE
PANEL,TELEPHONE SWITCHBOARD
3900
6780-01-381-7188INTERCHANGEABLE
DARKROOM EXPENDABLE SUPPLY SET,P

Frequently Asked Questions

What is NSN 1680-00-546-0929?

NSN 1680-00-546-0929 is a Arm,shoulder Harness, manufactured by Hardman Aircraft Inc, classified under FSC 1680 (No Item Name Available). Status: active.

What are the part numbers for NSN 1680-00-546-0929?

NSN 1680-00-546-0929 has 3 cross-referenced part numbers: 3900 (Hardman Aircraft Inc), 2448330 (The Boeing Company), 2448330 (The Boeing Company).

What NSN replaces 1680-00-546-0929?

There are 12 known substitutes for 1680-00-546-0929: 7510-00-129-5721, 3030-00-528-4594, 6625-00-581-8329 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3900?

Key specifications for 3900: General Characteristics Item Description: ALUMINUM ALLOY 6061 T6; 0.125 IN. H IN. 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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