PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1776Pinion Assembly,handstaff

Aerosonic Llc · NSN 6685-00-978-5069 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-978-5069 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-978-5069. Primary manufacturer part number: 1776.
Features
  • Pinion Assembly,handstaff — FSC 6685
  • General Characteristics Item Description: ONE EA FSCM 98810 PART NO. M1310 PINION HANDSTAFF 15 TEETH,PART NO. P1219 HAIRSPRING GUARD,PART NO. P1218 HAIRSPRING
  • 2 verified cross-references
  • Primary manufacturer: Aerosonic Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Pinion Assembly,handstaff, cataloged under National Stock Number 6685-00-978-5069, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Aerosonic Llc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN6685-00-978-5069
Primary Part Number1776
Item NamePinion Assembly,handstaff
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAerosonic Llc
StatusACTIVE
General Characteristics Item DescriptionONE EA FSCM 98810 PART NO. M1310 PINION HANDSTAFF 15 TEETH,PART NO. P1219 HAIRSPRING GUARD,PART NO. P1218 HAIRSPRING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4320-00-218-5941 INTERCHANGEABLE
Rotor,power
3940-00-263-3041S1801-860466 INTERCHANGEABLE
Block,tackle
Naval Ship Systems Command
6810-00-366-7048 INTERCHANGEABLE
Hydrazine Sulfate
9390-00-463-15361776 INTERCHANGEABLE
Nonmetallic Channel
Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp
3120-00-661-3910177-6 INTERCHANGEABLE
Bearing,sleeve
Manitowoc Engineering Co Division of the Manitowoc Co Inc
6645-00-663-6002 INTERCHANGEABLE
Clock,panel
5120-00-760-96721776 INTERCHANGEABLE
Compressor
Cooper Machinery Services Llc
5815-00-859-656101776 INTERCHANGEABLE
Pawl Assembly
Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service
5930-01-041-64861776 INTERCHANGEABLE
Switch,rotary
Janco Corporation Dba Janco Corp Div Mason Controls
3120-01-067-3321A1776PJ INTERCHANGEABLE
Bearing,sleeve
Hunt Valve Company, Inc.
Cross-Reference Index
Part NumberManufacturer
A1776 Aerosonic Llc (USA)
1776 PRIMARY Aerosonic Llc (USA)
Related Parts
4320-00-218-5941INTERCHANGEABLE
ROTOR,POWER
3940-00-263-3041INTERCHANGEABLE
BLOCK,TACKLE
S1801-860466
6810-00-366-7048INTERCHANGEABLE
HYDRAZINE SULFATE
9390-00-463-1536INTERCHANGEABLE
NONMETALLIC CHANNEL
1776
3120-00-661-3910INTERCHANGEABLE
BEARING,SLEEVE
177-6
6645-00-663-6002INTERCHANGEABLE
CLOCK,PANEL
5120-00-760-9672INTERCHANGEABLE
COMPRESSOR
1776
5815-00-859-6561INTERCHANGEABLE
PAWL ASSEMBLY
01776
5930-01-041-6486INTERCHANGEABLE
SWITCH,ROTARY
1776
3120-01-067-3321INTERCHANGEABLE
BEARING,SLEEVE
A1776PJ
5998-01-070-4141INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5340-01-147-8142INTERCHANGEABLE
CLAMP,LOOP

Frequently Asked Questions

What is NSN 6685-00-978-5069?

NSN 6685-00-978-5069 is a Pinion Assembly,handstaff, manufactured by Aerosonic Llc, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-978-5069?

NSN 6685-00-978-5069 has 2 cross-referenced part numbers: A1776 (Aerosonic Llc), 1776 (Aerosonic Llc).

What NSN replaces 6685-00-978-5069?

There are 12 known substitutes for 6685-00-978-5069: 4320-00-218-5941, 3940-00-263-3041, 6810-00-366-7048 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1776?

Key specifications for 1776: General Characteristics Item Description: ONE EA FSCM 98810 PART NO. M1310 PINION HANDSTAFF 15 TEETH,PART NO. P1219 HAIRSPRING GUARD,PART NO. P1218 HAIRSPRING; End Item Identification: AIRCRAFT,T-38. 2 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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