PartsTable TECHNICAL DATA SHEET
NSN 5220-01-550-2328Government record, cited

Gage, Firing Pin Protrusion5220-01-550-2328

NSN 5220-01-550-2328 · NIIN 015502328 · Part number MMT-0005
Bushmaster Firearms International, Llc · FSC 5220 — Inspection Gages and Precision Layout Tools · FSG 52 — Measuring Tools · CAGE 7Z500
Government record, cited
NSN 5220-01-550-2328 — this item is cataloged by the U.S. Government under National Stock Number 5220-01-550-2328. Manufacturer of record part number: MMT-0005.
Also searched as  5220-01-550-2328 · 5220015502328 · NIIN 015502328 · 01-550-2328 · FSC 5220 Inspection Gages and Precision Layout Tools · CAGE 7Z500 · MMT-0005
Nearby stock numbers  ·
Features
  • Gage,firing Pin Protrusion — FSC 5220
  • Design Type: DOUBLE END
  • Features Provided: COMBINATION GO NOT GO GAGE
  • 1 manufacturer part number on file
  • Manufacturer of record: Bushmaster Firearms International, Llc
Identification
  • NSN: 5220-01-550-2328
  • NIIN: 015502328
  • FSC: 5220 — Inspection Gages and Precision Layout Tools
  • FSG: 52 — Measuring Tools
  • Primary part number: MMT-0005
  • Manufacturer: Bushmaster Firearms International, Llc
General Description

The Gage,firing Pin Protrusion, cataloged under National Stock Number 5220-01-550-2328, is classified within Federal Supply Class 5220 (Inspection Gages and Precision Layout Tools) of the Measuring Tools group. The manufacturer of record is Bushmaster Firearms International, Llc. Government technical data includes 2 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. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5220-01-550-2328
Primary Part NumberMMT-0005
Item NameGage,firing Pin Protrusion
FSC / FSG5220 / 52 — Inspection Gages and Precision Layout Tools
ManufacturerBushmaster Firearms International, Llc
StatusACTIVE
Design TypeDOUBLE END
Features ProvidedCOMBINATION GO NOT GO GAGE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
MMT-0005 PRIMARY Bushmaster Firearms International, Llc (USA)
No interchangeability data on file.
Other items in FSC 5220 — Inspection Gages and Precision Layout Tools
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5220-00-001-1255
LEVEL,PRECISION,MASTER
5220-00-001-2242
5220-00-001-2242 · Item name not on file
5220-00-001-2243
5220-00-001-2243 · Item name not on file
5220-00-001-2673
5220-00-001-2673 · Item name not on file
5220-00-001-2674
5220-00-001-2674 · Item name not on file
5220-00-001-2691
5220-00-001-2691 · Item name not on file
5220-00-001-2692
5220-00-001-2692 · Item name not on file
5220-00-001-2693
5220-00-001-2693 · Item name not on file

Frequently Asked Questions

What is NSN 5220-01-550-2328?

NSN 5220-01-550-2328 is a Gage,firing Pin Protrusion, manufactured by Bushmaster Firearms International, Llc, classified under FSC 5220, Inspection Gages and Precision Layout Tools. Status: active.

What part numbers are listed for NSN 5220-01-550-2328?

NSN 5220-01-550-2328 has 1 manufacturer part number on file: MMT-0005 (Bushmaster Firearms International, Llc).

What are the specifications of MMT-0005?

Key specifications for MMT-0005: Design Type: DOUBLE END; Features Provided: COMBINATION GO NOT GO GAGE; Special Features: CHECKS FIRING PIN PROTRUSION FOR MIN .028 AND MAX .036 PROTRUSION TO PREVENT RIFLE FROM BLOWING UP OR NOT FIRING. 2 specifications are documented in the U.S. Government catalog.

Is NSN 5220-01-550-2328 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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