General Characteristics Item Description: 2.62 IN. LG;1.45 IN. W IN
Identification
NSN: 1005-01-121-3686
NIIN: 011213686
FSC: 1005 — Guns, Through 30mm
FSG: 10 — Weapons
General Description
The Counter Assembly, cataloged under National Stock Number 1005-01-121-3686, is classified within Federal Supply Class 1005 (Guns, Through 30mm) of the Weapons group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1005-01-121-3686
Item Name
Counter Assembly
FSC / FSG
1005 / 10 — Guns, Through 30mm
Status
ACTIVE
General Characteristics Item Description
2.62 IN. LG;1.45 IN. W IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL D — Destroy Item
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6145-01-204-3461POSSIBLE MATCH
CABLE,POWER,ELECTRICAL
Possible match (shared part number)
5970-01-252-19186163037-1POSSIBLE MATCH
INSULATOR,PREAMP DETECTOR CASE
Possible match (shared part number)Naval Sea Systems Command
5342-01-365-97615335618POSSIBLE MATCH
BELLOWS,PROTECTION
Possible match (shared part number)Naval Sea Systems Command
2520-01-413-190405714232POSSIBLE MATCH
EXTENSION ASSEMBLY,TRANSFER CASE
Possible match (shared part number)Am General Llc
4810-01-459-638719140POSSIBLE MATCH
VALVE,SOLENOID
Possible match (shared part number)Exceltec Intl Corp
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
19140
3/9Design control — primary reference
Abrams Instrument Corporation
172A1346
7/2Vendor item drawing reference
General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems
Related Parts
6145-01-204-3461POSSIBLE MATCH
CABLE,POWER,ELECTRICAL
5970-01-252-1918POSSIBLE MATCH
INSULATOR,PREAMP DETECTOR CASE
6163037-1
5342-01-365-9761POSSIBLE MATCH
BELLOWS,PROTECTION
5335618
2520-01-413-1904POSSIBLE MATCH
EXTENSION ASSEMBLY,TRANSFER CASE
05714232
4810-01-459-6387POSSIBLE MATCH
VALVE,SOLENOID
19140
Frequently Asked Questions
What is NSN 1005-01-121-3686?
NSN 1005-01-121-3686 is a Counter Assembly, classified under FSC 1005, Guns, Through 30mm. Status: active.
What NSN replaces 1005-01-121-3686?
5 possible matches (shared part number, not a government interchangeability claim): 6145-01-204-3461, 5970-01-252-1918, 5342-01-365-9761. Verify interchangeability with system specifications before substitution.
What are the specifications of 1005-01-121-3686?
Key specifications for 1005-01-121-3686: General Characteristics Item Description: 2.62 IN. LG;1.45 IN. W IN; End Item Identification: GPU-5/A 30MM GUN POD MM. 1 specification is documented in the U.S. Government catalog.
Is NSN 1005-01-121-3686 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 1005-01-121-3686?
NSN 1005-01-121-3686 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.