PartsTable TECHNICAL DATA SHEET
NSN 5120-01-078-1891Government record, cited

Socket, Socket Wrench5120-01-078-1891

NSN 5120-01-078-1891 · NIIN 010781891 · Part number TEL10
Sna Germany Gmbh · FSC 5120 — Hand Tools, Nonedged, Nonpowered · FSG 51 — Hand Tools · CAGE C7127
Government record, cited
NSN 5120-01-078-1891 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-078-1891. Manufacturer of record part number: TEL10.
Also searched as  5120-01-078-1891 · 5120010781891 · NIIN 010781891 · 01-078-1891 · FSC 5120 Hand Tools, Nonedged, Nonpowered · CAGE C7127 · TEL10 · MIL-W-8982 · 5120PL2181874 · M8982/1-102LB
Nearby stock numbers  ·
Features
  • Socket,socket Wrench — FSC 5120
  • Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN
  • Wrenching Surface Size: 0.312 INCHES NOMINAL SINGLE END IN
  • Wrenching End Outside Diameter: 0.460 INCHES MAXIMUM IN
  • Style Designator: INTERNAL-INTERNAL
  • Features Provided: MANUAL TOOL
  • Wrenching Surface Shape: SPLINE SINGLE END INTERNAL
  • Drive End Shape: SQUARE SINGLE END INTERNAL
Identification
  • NSN: 5120-01-078-1891
  • NIIN: 010781891
  • FSC: 5120 — Hand Tools, Nonedged, Nonpowered
  • FSG: 51 — Hand Tools
  • Primary part number: TEL10
  • Manufacturer: Sna Germany Gmbh
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-078-1891, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Sna Germany Gmbh. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-078-1891
Primary Part NumberTEL10
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — Hand Tools, Nonedged, Nonpowered
ManufacturerSna Germany Gmbh
StatusACTIVE
Drive Surface Size0.250 INCHES NOMINAL SINGLE END IN
Wrenching Surface Size0.312 INCHES NOMINAL SINGLE END IN
Wrenching End Outside Diameter0.460 INCHES MAXIMUM IN
Style DesignatorINTERNAL-INTERNAL
Features ProvidedMANUAL TOOL
Wrenching Surface ShapeSPLINE SINGLE END INTERNAL
Drive End ShapeSQUARE SINGLE END INTERNAL
Wrenching Surface Flute Quantity12
Wrenching End Opening Depth0.312 INCHES MINIMUM IN
Surface TreatmentCHROMIUM OVERALL
Drive End Outside Diameter0.460 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 1
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5120-01-428-8677TEL10 POSSIBLE MATCH
SOCKET,SOCKET WRENCH
Possible match (shared part number)Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
Cross-Reference Index
Part NumberManufacturer
TEL10 Sna Germany Gmbh (DEU)
Reference documents
ReferenceMeaning
MIL-W-8982 4/1 Identification reference
U.S. Government activity
5120PL2181874 6/9 Informative reference only
Jednolity Indeks Materialowy - Uniform Material Index
M8982/1-102LB 5/1 Secondary reference
U.S. Government activity
Related Parts
5120-01-428-8677POSSIBLE MATCH
SOCKET,SOCKET WRENCH
TEL10

Frequently Asked Questions

What is NSN 5120-01-078-1891?

NSN 5120-01-078-1891 is a Socket,socket Wrench, manufactured by Sna Germany Gmbh, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.

What part numbers are listed for NSN 5120-01-078-1891?

NSN 5120-01-078-1891 has 1 manufacturer part number on file: TEL10 (Sna Germany Gmbh).

What NSN replaces 5120-01-078-1891?

1 possible match (shared part number, not a government interchangeability claim): 5120-01-428-8677. Verify interchangeability with system specifications before substitution.

What are the specifications of TEL10?

Key specifications for TEL10: Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN; Wrenching Surface Size: 0.312 INCHES NOMINAL SINGLE END IN; Wrenching End Outside Diameter: 0.460 INCHES MAXIMUM IN; Style Designator: INTERNAL-INTERNAL. 12 specifications are documented in the U.S. Government catalog.

Is NSN 5120-01-078-1891 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.
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