The Plunger,rear Sight, cataloged under National Stock Number 1005-01-251-9689, is classified within Federal Supply Class 1005 (Guns, Through 30mm) of the Weapons group. The manufacturer of record is Fn America Llc Div Columbia, Sc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1005-01-251-9689 |
| Primary Part Number | 12597055 |
| Item Name | Plunger,rear Sight |
| FSC / FSG | 1005 / 10 — Guns, Through 30mm |
| Manufacturer | Fn America Llc Div Columbia, Sc |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,CARBON,COLD ROLLED,KILLED,SPHEROIDIZED,COMP 1055-1065,ASTM-A108 OR COMP. 1060(S1 0.15-0.30%),GRAIN SIZE5-7,ASTM-A568; MANGANESE PHOSPHATE,TYPE M,CLASS 1,MIL-P-16232; HEAT TREATMENT=HARDEN AT 840 DEG. C. IN A CARBONITRIDING ATMOSPHERE FOR 40 MIN.,OIL QUENCH,TEMPER 1 HR. MIN. TO RH A 72-75; 11.6 MM. LG.; 6.99 MM. DIA. MM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12597055 | Fn Herstal Dba Fabrique Nationale Nouvelle Herstal (BEL) |
| 12597055 PRIMARY | Fn America Llc Div Columbia, Sc (USA) |
| Reference | Meaning |
|---|---|
| 1005PL2207219 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 12597055 | D/9 Drawing number reference only Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| 87XD1040 | 5/9 Secondary reference Fn America Llc Div Columbia, Sc |
| 3602003262 | 5/9 Secondary reference Fn America Llc Div Columbia, Sc |
NSN 1005-01-251-9689 is a Plunger,rear Sight, manufactured by Fn America Llc Div Columbia, Sc, classified under FSC 1005, Guns, Through 30mm. Status: active.
NSN 1005-01-251-9689 has 2 manufacturer part numbers on file: 12597055 (Fn Herstal Dba Fabrique Nationale Nouvelle Herstal), 12597055 (Fn America Llc Div Columbia, Sc).
Key specifications for 12597055: General Characteristics Item Description: STEEL,CARBON,COLD ROLLED,KILLED,SPHEROIDIZED,COMP 1055-1065,ASTM-A108 OR COMP. 1060(S1 0.15-0.30%),GRAIN SIZE5-7,ASTM-A568; MANGANESE PHOSPHATE,TYPE M,CLASS 1,MIL-P-16232; HEAT TREATMENT=HARDEN AT 840 DEG. C. IN A CARBONITRIDING ATMOSPHERE FOR 40 MIN.,OIL QUENCH,TEMPER 1 HR. MIN. TO RH A 72-75; 11.6 MM. LG.; 6.99 MM. DIA. MM. 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 1005-01-251-9689 has DEMIL Code D. 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.