The Parts Kit,interlock Assembly, cataloged under National Stock Number 4540-00-423-3443, is classified within Federal Supply Class 4540 (Waste Disposal Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings). 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4540-00-423-3443 |
| Primary Part Number | CS4540-0009 |
| Item Name | Parts Kit,interlock Assembly |
| FSC / FSG | 4540 / 45 — Waste Disposal Equipment |
| Manufacturer | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF FOLLOWING ITEMS,2 NICKLE COPPER CTTER PINS 1/16 IN. DIA X 1/2 IN. LG,1 STEEL BALL LOCK PIN,1 CHAIN RING,LOCK PIN,CHAIN RING,1 SCREW SET NO. 5-40 NC 3.000 X 0.250 IN. LG,1 CRES COVER ACCESS,2 INSTRUCTION PLATES,1 SUPPORT PLATE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| CS4540-0009 PRIMARY | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA) |
| Reference | Meaning |
|---|---|
| 75656-31X22PCS20THRU35 | 5/9 Secondary reference U.S. Government activity |
| 75656-31X22PC/22/24/27/30-33/35 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4540-00-423-3443 is a Parts Kit,interlock Assembly, manufactured by Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings), classified under FSC 4540, Waste Disposal Equipment. Status: active.
NSN 4540-00-423-3443 has 1 manufacturer part number on file: CS4540-0009 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)).
Key specifications for CS4540-0009: General Characteristics Item Description: CONSISTS OF FOLLOWING ITEMS,2 NICKLE COPPER CTTER PINS 1/16 IN. DIA X 1/2 IN. LG,1 STEEL BALL LOCK PIN,1 CHAIN RING,LOCK PIN,CHAIN RING,1 SCREW SET NO. 5-40 NC 3.000 X 0.250 IN. LG,1 CRES COVER ACCESS,2 INSTRUCTION PLATES,1 SUPPORT PLATE IN. 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.
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.