| Item Name | Tube Assembly Metal |
| INC Code | 21989 |
| Federal Supply Group (FSG) | Pipe Tubing Hose and Fittings |
| Federal Supply Class (FSC) | 4710 Pipe Tube and Rigid Tubing |
| National Item Identification Number (NIIN) | 01-424-4221 (014244221) |
| NCB Code | USA (01) |
| Manufacturer | Hyperox Technologies, In Speck Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABHP | OVERALL LENGTH | 3.970 INCHES NOMINAL |
| AGAV | END ITEM IDENTIFICATION | MK24MOD0 FULL FACE MASK |
| AHSA | TUBING MATERIAL | COPPER ALLOY |
| ARJD | DESIGN FORM | STRAIGHT |
| CRTL | CRITICALITY CODE JUSTIFICATION | FEAT |
| FEAT | SPECIAL FEATURES | ITEMS ARE BEING CODED AS CRITICAL TO INSURE SOURCE INSPECTION WILL BE PERFORMED AT THE POINT OF MANUFACTURE, PRIOR TO MATERIAL RECEIPT BY THE US NAVY OR OTHER DOD COMPONENTS. THESE ITEMS ARE PIECE PARTS OR END ITEMS IN SUPPORT OF VITAL MILI |
| Relevant Components for NSN - 4710-01-424-4221, 4710014244221 | ||||
| 4710-01-652-6437 (4710016526437) | 4710-01-587-0389 (4710015870389) | 4710-01-314-0556 (4710013140556) | 4710-01-128-3515 (4710011283515) | |
| 4710-01-483-8718 (4710014838718) | 4710-01-309-7990 (4710013097990) | 4710-01-613-4849 (4710016134849) | 4710-00-278-6444 (4710002786444) | |
| 4710-01-394-1012 (4710013941012) | 4710-01-490-0245 (4710014900245) | 4710-01-353-8581 (4710013538581) | 4710-01-537-3862 (4710015373862) | |
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