The Marker,identification, cataloged under National Stock Number 7690-01-369-6987, is classified within Federal Supply Class 7690 (Miscellaneous Printed Matter) of the Books, Maps, and Other Publications group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 7690-01-369-6987 |
| Primary Part Number | SK56Y21-90-01 |
| Item Name | Marker,identification |
| FSC / FSG | 7690 / 76 — Miscellaneous Printed Matter |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Length | 4.000 INCHES NOMINAL IN |
| Inscription | 1ST SIDE 1ST INSCRIPTION: INSTALL THIS WAY; 2ND: ONE FITTING, ONE BODY WITH HOSE AND TAB |
| Marking Designation | LEGEND AND SYMBOL LOCATION NOT OTHERWISE SPECIFIED |
| Criticality Code Justification | AYBM |
| Basic Shape Style | SQUARE W/ROUNDED CORNERS |
| Color | RED FIRST SIDE INSCRIPTION BACKGROUND |
| Color | BLACK AND GRAY/GREY AND YELLOW FIRST SIDE INSCRIPTION |
| Usage Form | SINGULAR |
| Width | 4.000 INCHES NOMINAL IN |
| Material | PLASTIC VINYL |
| 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 |
|---|---|
| SK56Y21-90-01 PRIMARY | Naval Sea Systems Command (USA) |
NSN 7690-01-369-6987 is a Marker,identification, manufactured by Naval Sea Systems Command, classified under FSC 7690, Miscellaneous Printed Matter. Status: active.
NSN 7690-01-369-6987 has 1 manufacturer part number on file: SK56Y21-90-01 (Naval Sea Systems Command).
Key specifications for SK56Y21-90-01: Length: 4.000 INCHES NOMINAL IN; Inscription: 1ST SIDE 1ST INSCRIPTION: INSTALL THIS WAY; 2ND: ONE FITTING, ONE BODY WITH HOSE AND TAB; Marking Designation: LEGEND AND SYMBOL LOCATION NOT OTHERWISE SPECIFIED; Criticality Code Justification: AYBM. 10 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.