PartsTable TECHNICAL DATA SHEET
NSN 5120-01-262-7304Government record, cited

Inserter, Seal5120-01-262-7304

NSN 5120-01-262-7304 · NIIN 012627304 · Part number ST1226
Cummins Inc · FSC 5120 — Hand Tools, Nonedged, Nonpowered · FSG 51 — Hand Tools · CAGE 0B8S3
Government record, cited
NSN 5120-01-262-7304 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-262-7304. Manufacturer of record part number: ST1226.
Also searched as  5120-01-262-7304 · 5120012627304 · NIIN 012627304 · 01-262-7304 · FSC 5120 Hand Tools, Nonedged, Nonpowered · CAGE 0B8S3 · ST1226
Nearby stock numbers  ·
Features
  • Inserter,seal — FSC 5120
  • Functional Description: USED TO INSTALL NO. 188319 THERMOSTAT SEAL
  • 1 manufacturer part number on file
  • Manufacturer of record: Cummins Inc
Identification
  • NSN: 5120-01-262-7304
  • NIIN: 012627304
  • FSC: 5120 — Hand Tools, Nonedged, Nonpowered
  • FSG: 51 — Hand Tools
  • Primary part number: ST1226
  • Manufacturer: Cummins Inc
General Description

The Inserter,seal, cataloged under National Stock Number 5120-01-262-7304, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Cummins Inc. Government technical data includes 1 specification, 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. 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
NSN5120-01-262-7304
Primary Part NumberST1226
Item NameInserter,seal
FSC / FSG5120 / 51 — Hand Tools, Nonedged, Nonpowered
ManufacturerCummins Inc
StatusACTIVE
Functional DescriptionUSED TO INSTALL NO. 188319 THERMOSTAT SEAL
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.
5307-01-632-5496ST1226 POSSIBLE MATCH
STUD,STEPPED
Possible match (shared part number)Rolls-Royce Corporation
Cross-Reference Index
Part NumberManufacturer
ST1226 PRIMARY Cummins Inc (USA)
Related Parts
5307-01-632-5496POSSIBLE MATCH
STUD,STEPPED
ST1226

Frequently Asked Questions

What is NSN 5120-01-262-7304?

NSN 5120-01-262-7304 is a Inserter,seal, manufactured by Cummins Inc, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.

What part numbers are listed for NSN 5120-01-262-7304?

NSN 5120-01-262-7304 has 1 manufacturer part number on file: ST1226 (Cummins Inc).

What NSN replaces 5120-01-262-7304?

1 possible match (shared part number, not a government interchangeability claim): 5307-01-632-5496. Verify interchangeability with system specifications before substitution.

What are the specifications of ST1226?

Key specifications for ST1226: Functional Description: USED TO INSTALL NO. 188319 THERMOSTAT SEAL; End Item Identification: CUMMINS ENGINES. 1 specification is documented in the U.S. Government catalog.

Is NSN 5120-01-262-7304 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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