PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

687Seat,aircraft

Ami Industries, Inc Div Utc Aerospace Systems · NSN 1680-00-631-7344 · FSC 1680 · No Item Name Available
Verified by PartsTable
NSN 1680-00-631-7344 — this item is cataloged by the U.S. Government under National Stock Number 1680-00-631-7344. Primary manufacturer part number: 687.
Features
  • Seat,aircraft — FSC 1680
  • Upholstered Portion: HEADREST
  • Mounting Type: TRACK
  • Adjustability: ADJUSTABLE
  • Seating Capacity: 1
  • Adjustment Type: HORIZONTAL AND VERTICAL
  • 2 verified cross-references
  • Primary manufacturer: Ami Industries, Inc Div Utc Aerospace Systems
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Seat,aircraft, cataloged under National Stock Number 1680-00-631-7344, is classified within Federal Supply Class 1680 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Ami Industries, Inc Div Utc Aerospace Systems. Government technical data includes 5 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1680-00-631-7344
Primary Part Number687
Item NameSeat,aircraft
FSC / FSG1680 / 16 — No Item Name Available
ManufacturerAmi Industries, Inc Div Utc Aerospace Systems
StatusACTIVE
Upholstered PortionHEADREST
Mounting TypeTRACK
AdjustabilityADJUSTABLE
Seating Capacity1
Adjustment TypeHORIZONTAL AND VERTICAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-0676687 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
4730-00-189-3041 INTERCHANGEABLE
Reducer,pipe
5310-00-354-5927 INTERCHANGEABLE
Washer,flat
5120-00-473-74707082084 INTERCHANGEABLE
Inserter,seal
U S Army Tank Automotive Command Amsta-Im-Mm
5325-00-616-596153-480 INTERCHANGEABLE
Grommet,nonmetallic
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5305-00-719-868120000687 INTERCHANGEABLE
Screw,machine
Waltham Aircraft Clock Corp
3110-00-938-4023E104644PC84 INTERCHANGEABLE
Bearing,roller,needle
Control Flow, Inc. Dba Control Flow Inc
2920-01-038-1329687 INTERCHANGEABLE
Spark Plug
Allied-Signal Inc Autolite Div
6240-01-044-00717646 INTERCHANGEABLE
Lamp,incandescent
Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
5950-01-053-4101 INTERCHANGEABLE
Transformer,radio Frequency
Cross-Reference Index
Part NumberManufacturer
1680PL1958610 Jednolity Indeks Materialowy - Uniform Material Index (POL)
687 PRIMARY Ami Industries, Inc Div Utc Aerospace Systems (USA)
Related Parts
3110-00-100-0676INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
687
4730-00-189-3041INTERCHANGEABLE
REDUCER,PIPE
5310-00-354-5927INTERCHANGEABLE
WASHER,FLAT
5120-00-473-7470INTERCHANGEABLE
INSERTER,SEAL
7082084
5325-00-616-5961INTERCHANGEABLE
GROMMET,NONMETALLIC
53-480
5305-00-719-8681INTERCHANGEABLE
SCREW,MACHINE
20000687
3110-00-938-4023INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
E104644PC84
2920-01-038-1329INTERCHANGEABLE
SPARK PLUG
687
6240-01-044-0071INTERCHANGEABLE
LAMP,INCANDESCENT
7646
5950-01-053-4101INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
5315-01-068-4709INTERCHANGEABLE
PIN,GROOVED,HEADLESS
687
5120-01-310-2768INTERCHANGEABLE
JACK,LEVELING-SUPPORT
687

Frequently Asked Questions

What is NSN 1680-00-631-7344?

NSN 1680-00-631-7344 is a Seat,aircraft, manufactured by Ami Industries, Inc Div Utc Aerospace Systems, classified under FSC 1680 (No Item Name Available). Status: active.

What are the part numbers for NSN 1680-00-631-7344?

NSN 1680-00-631-7344 has 2 cross-referenced part numbers: 1680PL1958610 (Jednolity Indeks Materialowy - Uniform Material Index), 687 (Ami Industries, Inc Div Utc Aerospace Systems).

What NSN replaces 1680-00-631-7344?

There are 12 known substitutes for 1680-00-631-7344: 3110-00-100-0676, 4730-00-189-3041, 5310-00-354-5927 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 687?

Key specifications for 687: Upholstered Portion: HEADREST; Overall Width: 21.188 INCHES NOMINAL IN; Mounting Type: TRACK; Overall Length: 26.250 INCHES NOMINAL 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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