The Adapter,tie Down, cataloged under National Stock Number 1670-00-885-8664, is classified within Federal Supply Class 1670 (Parachutes; Aerial Pick up, Delivery, Recovery Systems; and Cargo Tie Down Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Leonardo Spa Helicopters Division - Production Site. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1670-00-885-8664 |
| Primary Part Number | 2254 |
| Item Name | Adapter,tie Down |
| FSC / FSG | 1670 / 16 — Parachutes; Aerial Pick up, Delivery, Recovery Systems; and Cargo Tie Down Equipment |
| Manufacturer | Leonardo Spa Helicopters Division - Production Site |
| Status | ACTIVE |
| Head Height | 0.375 INCHES NOMINAL IN |
| Attachment Type | SEAT STUD |
| Load Rating | 2500.0 POUNDS MAXIMUM LBS |
| Overall Diameter | 3.250 INCHES NOMINAL IN |
| Mounting Hole Arrangement Style | EIGHT HOLE STAGGERED |
| Longest Vertical Distance Between Mounting Centers | 2.420 INCHES NOMINAL IN |
| Mounting Hole Diameter | 0.159 INCHES NOMINAL IN |
| Shortest Horizontal Distance Between Mounting Centers | 1.812 INCHES NOMINAL IN |
| Seat Stud Style | SLOTTED |
| Slot Depth | 0.125 INCHES NOMINAL IN |
| Shortest Vertical Distance Between Mounting Centers | 1.722 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OR CADMIUM AND CHROMATE OR CADMIUM AND PHOSPHATE |
| Material | STEEL COMP 4130 |
| Slot Width | 0.172 INCHES NOMINAL IN |
| Longest Horizontal Distance Between Mounting Centers | 2.780 INCHES NOMINAL IN |
| Head Diameter | 0.625 INCHES NOMINAL IN |
| Mounting Hole Type | PLAIN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2254 | Leonardo Spa Helicopters Division - Production Site (ITA) |
| Reference | Meaning |
|---|---|
| 2254 | 3/2 Design control — primary reference U.S. Government activity |
| FDC1885M5 | 5/2 Secondary reference U.S. Government activity |
NSN 1670-00-885-8664 is a Adapter,tie Down, manufactured by Leonardo Spa Helicopters Division - Production Site, classified under FSC 1670, Parachutes; Aerial Pick up, Delivery, Recovery Systems; and Cargo Tie Down Equipment. Status: active.
NSN 1670-00-885-8664 has 1 manufacturer part number on file: 2254 (Leonardo Spa Helicopters Division - Production Site).
Key specifications for 2254: Overall Height: 0.610 INCHES NOMINAL IN; Head Height: 0.375 INCHES NOMINAL IN; Attachment Type: SEAT STUD; Load Rating: 2500.0 POUNDS MAXIMUM LBS. 17 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.
NSN 1670-00-885-8664 has DEMIL Code Q. 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.