The Aligner,universal F, cataloged under National Stock Number 5120-00-331-6091, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Aligner,universal F
FSC / FSG
5120 — Hand Tools, Nonedged, Nonpowered (FSG 51)
Technical Specifications
Parameter
Value
NSN
5120-00-331-6091
Item Name
Aligner,universal F
FSC / FSG
5120 / 51 — Hand Tools, Nonedged, Nonpowered
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-00-729-55713402-8POSSIBLE MATCH
COUPLING HALF,QUICK DISCONNECT
Possible match (shared part number)Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
5815-01-007-6715340280POSSIBLE MATCH
CAM
Possible match (shared part number)Telemechanics Inc
4921-01-044-779734028POSSIBLE MATCH
FILLER,PREFORMED
Possible match (shared part number)Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division
4820-01-297-5059POSSIBLE MATCH
VALVE,DIAPHRAGM,STOP
Possible match (shared part number)
2530-01-443-8533POSSIBLE MATCH
CYLINDER ASSEMBLY,HYDRAULIC BRAK
Possible match (shared part number)
4820-01-531-766352-95F 1-1/2IN/34028POSSIBLE MATCH
VALVE,VENT-CHECK
Possible match (shared part number)Tate Andale, Llc
5985-01-660-713734028POSSIBLE MATCH
SUPPORT,ANTENNA
Possible match (shared part number)Viavi Solutionsllc
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
340-28
3/9Design control — primary reference
Recon/optical, Inc.
Related Parts
4730-00-729-5571POSSIBLE MATCH
COUPLING HALF,QUICK DISCONNECT
3402-8
5815-01-007-6715POSSIBLE MATCH
CAM
340280
4921-01-044-7797POSSIBLE MATCH
FILLER,PREFORMED
34028
4820-01-297-5059POSSIBLE MATCH
VALVE,DIAPHRAGM,STOP
2530-01-443-8533POSSIBLE MATCH
CYLINDER ASSEMBLY,HYDRAULIC BRAK
4820-01-531-7663POSSIBLE MATCH
VALVE,VENT-CHECK
52-95F 1-1/2IN/34028
5985-01-660-7137POSSIBLE MATCH
SUPPORT,ANTENNA
34028
Frequently Asked Questions
What is NSN 5120-00-331-6091?
NSN 5120-00-331-6091 is a Aligner,universal F, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
What NSN replaces 5120-00-331-6091?
7 possible matches (shared part number, not a government interchangeability claim): 4730-00-729-5571, 5815-01-007-6715, 4921-01-044-7797. Verify interchangeability with system specifications before substitution.
Is NSN 5120-00-331-6091 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.
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.