The Tool,spacer,ballist, cataloged under National Stock Number 4931-01-154-1837, is classified within Federal Supply Class 4931 (Fire Control Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4931-01-154-1837 |
| Primary Part Number | 10959100 |
| Item Name | Tool,spacer,ballist |
| FSC / FSG | 4931 / 49 — Fire Control Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL STEEL 1020 TO 1025 COLDDRAWN ASTM-A108; STEEL TOOL ALLOY CLASS 01 OR 02 HOT ROLLED SPEC QQ-T-570; STEEL 1020 TO 1025 COLD DRAWN ASTM -A108;STEE TOOL ALLOY CLASS 01OR02 HOTROLLED SPEC QQ-T-570; OVERALL LENGTH 6.75,OVERALL HEIGHT .719,OVERALL WIDTH .719 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 10959100 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| Reference | Meaning |
|---|---|
| 10959100 | 5/9 Secondary reference L. W. Schneider, Inc |
| 26951 | 5/9 Secondary reference Granco Industries Inc |
| 10959100 | 5/9 Secondary reference Granco Industries Inc |
| 10959100 | 5/9 Secondary reference Bright Lights Usa, Inc Dba Blusa Defense Manufacturing |
NSN 4931-01-154-1837 is a Tool,spacer,ballist, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 4931, Fire Control Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4931-01-154-1837 has 1 manufacturer part number on file: 10959100 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
2 possible matches (shared part number, not a government interchangeability claim): 5305-01-272-7431, 5310-01-342-5519. Verify interchangeability with system specifications before substitution.
Key specifications for 10959100: General Characteristics Item Description: MATERIAL STEEL 1020 TO 1025 COLDDRAWN ASTM-A108; STEEL TOOL ALLOY CLASS 01 OR 02 HOT ROLLED SPEC QQ-T-570; STEEL 1020 TO 1025 COLD DRAWN ASTM -A108;STEE TOOL ALLOY CLASS 01OR02 HOTROLLED SPEC QQ-T-570; OVERALL LENGTH 6.75,OVERALL HEIGHT .719,OVERALL WIDTH .719. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4931-01-154-1837 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.