PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3339Mechanism-Altered

Kearflex Engineering Company · NSN 6685-01-004-1887 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-004-1887 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-004-1887. Primary manufacturer part number: 3339.
Features
  • Mechanism-Altered — FSC 6685
  • 2 verified cross-references
  • Primary manufacturer: Kearflex Engineering Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Mechanism-Altered, cataloged under National Stock Number 6685-01-004-1887, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Kearflex Engineering Company. 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
NSN6685-01-004-1887
Primary Part Number3339
Item NameMechanism-Altered
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerKearflex Engineering Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-0372 INTERCHANGEABLE
Cup,tapered Roller Bearing
5310-00-221-48743339 INTERCHANGEABLE
Nut,plain,hexagon
Telemechanics Inc
5410-00-237-1547 INTERCHANGEABLE
Shelter,astrodome-Type
2530-00-710-20351920392 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Chrysler Realty Company Llc Dba Daimler Chrysler
5120-00-898-6948 INTERCHANGEABLE
Cleaner,chute Blade
2910-01-024-123033339 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
5330-01-095-1203003339 INTERCHANGEABLE
Gasket
Dynalec Corporation
3110-01-125-40243339 INTERCHANGEABLE
Bearing
Wilshire Corp
5340-01-153-809923334 INTERCHANGEABLE
Switch Cover,actuator
Moog Inc. Dba Ampac-Isp Corp
4730-01-298-9542 INTERCHANGEABLE
Nipple,pipe
Cross-Reference Index
Part NumberManufacturer
3339 PRIMARY Kearflex Engineering Company (USA)
AMT41 Mahr Inc (USA)
Related Parts
3110-00-100-0372INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
5310-00-221-4874INTERCHANGEABLE
NUT,PLAIN,HEXAGON
3339
5410-00-237-1547INTERCHANGEABLE
SHELTER,ASTRODOME-TYPE
2530-00-710-2035INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
1920392
5120-00-898-6948INTERCHANGEABLE
CLEANER,CHUTE BLADE
2910-01-024-1230INTERCHANGEABLE
FILTER ELEMENT,FLUID
33339
5330-01-095-1203INTERCHANGEABLE
GASKET
003339
3110-01-125-4024INTERCHANGEABLE
BEARING
3339
5340-01-153-8099INTERCHANGEABLE
SWITCH COVER,ACTUATOR
23334
4730-01-298-9542INTERCHANGEABLE
NIPPLE,PIPE
6685-01-480-2652INTERCHANGEABLE
INDICATOR,HUMIDITY,CARD
3339
6532-01-550-4501INTERCHANGEABLE
BLANKET,WARMING,HYPOTHERMIA
02000

Frequently Asked Questions

What is NSN 6685-01-004-1887?

NSN 6685-01-004-1887 is a Mechanism-Altered, manufactured by Kearflex Engineering Company, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-004-1887?

NSN 6685-01-004-1887 has 2 cross-referenced part numbers: 3339 (Kearflex Engineering Company), AMT41 (Mahr Inc).

What NSN replaces 6685-01-004-1887?

There are 12 known substitutes for 6685-01-004-1887: 3110-00-100-0372, 5310-00-221-4874, 5410-00-237-1547 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3339?

Key specifications for 3339: End Item Identification: AIRCRAFT,HORNET F/A-18; AIRCRAFT HARRIER AV-8B; AIRCRAFT,T-38. 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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