The Clampblock, cataloged under National Stock Number 1620-01-099-9701, is classified within Federal Supply Class 1620 (Aircraft Landing Gear Components) of the Aircraft Components and Accessories group. The manufacturer of record is Essner Manufacturing Lp. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1620-01-099-9701 |
| Primary Part Number | 4G12365-101A |
| Item Name | Clampblock |
| FSC / FSG | 1620 / 16 — Aircraft Landing Gear Components |
| Manufacturer | Essner Manufacturing Lp |
| Status | ACTIVE |
| General Characteristics Item Description | 2 HOLES 0.227 IN.DIA;2.500 IN.CENTER DISTANCE BETWEEN HOLES ALONG LG;0.250 IN.OUTSIDE EDGE TO HOLE CENTER DISTANCE ALONG WIDTH;3.120 IN.LG;.2500IN.W IN |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 4G12365-101A | Essner Manufacturing Lp (USA) |
| 4G12365-101A | United States Borax and Chemical Corp (USA) |
| 4G12365-101A | Aero Components, Llc (USA) |
| 4G12365-101A | Lockheed Martin Aeroparts, Inc. Dba Lockheed Martin Aeroparts Inc (USA) |
| 4G12365-101A | Circor Aerospace, Inc. Div Circor (USA) |
| Reference | Meaning |
|---|---|
| 4G12365-101A | 3/2 Design control — primary reference U.S. Government activity |
| 4G12365-101A | 5/2 Secondary reference U.S. Government activity |
NSN 1620-01-099-9701 is a Clampblock, manufactured by Essner Manufacturing Lp, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-01-099-9701 has 5 manufacturer part numbers on file: 4G12365-101A (Essner Manufacturing Lp), 4G12365-101A (United States Borax and Chemical Corp), 4G12365-101A (Aero Components, Llc), 4G12365-101A (Lockheed Martin Aeroparts, Inc. Dba Lockheed Martin Aeroparts Inc), 4G12365-101A (Circor Aerospace, Inc. Div Circor).
Key specifications for 4G12365-101A: General Characteristics Item Description: 2 HOLES 0.227 IN.DIA;2.500 IN.CENTER DISTANCE BETWEEN HOLES ALONG LG;0.250 IN.OUTSIDE EDGE TO HOLE CENTER DISTANCE ALONG WIDTH;3.120 IN.LG;.2500IN.W IN; Criticality Code Justification: FEAT; Special Features: FORM,FIT,FUNCTION; End Item Identification: AIRCRAFT C5A. 2 specifications are 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.
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.