| Item Name | Valve Safety Relief |
| INC Code | 05488 |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-287-3139 (002873139) |
| NCB Code | USA (00) |
| Manufacturer | Dresser Industries Inc |
| Associated Parts Numbers of NSN 4820-00-287-3139 | ||||||
|---|---|---|---|---|---|---|
| Part Number | Manufacturer | Item Name | Cage Code | Type | Status | RFQ |
| 1990T-1 21 35-50PSI | dresser industries inc | valve safety relief | 16497 | F | A | RFQ |
| 1990 | dresser industries inc | valve safety relief | 16497 | F | A | RFQ |
| 1990T-1 2X1-36-50PSI | dresser industries inc | valve safety relief | 16497 | F | A | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAAR | NOMINAL PIPE SIZE ACCOMMODATED | 0.500 INCHES 2ND END |
| AAAR | NOMINAL PIPE SIZE ACCOMMODATED | 1.000 INCHES 1ST END |
| ADQU | FLOW CONTROL DEVICE | DISK |
| ADSU | DISK LOADING METHOD | SPRING |
| ADSY | VALVE DISCHARGE FLOW RATE | 93.0 POUNDS PER HOUR |
| AEHZ | MAXIMUM OPERATING TEMP | 800.0 DEG FAHRENHEIT SINGLE RESPONSE |
| AEQJ | MINIMUM OPERATING TEMP | 401.0 DEG FAHRENHEIT |
| AHNC | CONNECTION STYLE | SOCKET ALL ENDS |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | UNTHREADED INTERNAL PIPE ALL ENDS |
| CQCY | ADJUSTABLE PRESSURE RANGE | 33.0 TO 55.0 POUNDS PER SQUARE INCH |
| CQGM | MAXIMUM OPERATING PRESSURE | 2000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| CSDC | OPENING PRESSURE SETTING | 50.0 POUNDS PER SQUARE INCH |
| FEAT | SPECIAL FEATURES | W/LIFTING LEVER AND INCONEL SPRING |
| MATT | MATERIAL | STEEL COMP 316 BODY |
| MATT | MATERIAL | STEEL COMP 316 FLOW CONTROL DEVICE |
| MATT | MATERIAL | STEEL COMP 410 STEM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A276 COND T ASSN STD SINGLE MATERIAL RESPONSE STEM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A479 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A479 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| MEDA | MEDIA FOR WHICH DESIGNED | STEAM SINGLE RESPONSE |
| STYL | STYLE DESIGNATOR | ANGLE |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | A-1 TYPE AND C CLASS |
| Relevant Components for NSN - 4820-00-287-3139, 4820002873139 | ||||
| 4820-00-835-3873 (4820008353873) | 4820-01-431-2398 (4820014312398) | 4820-01-009-8942 (4820010098942) | 4820-01-273-3653 (4820012733653) | |
| 4820-01-274-9975 (4820012749975) | 4820-01-600-7663 (4820016007663) | 4820-01-338-4276 (4820013384276) | 4820-01-233-6683 (4820012336683) | |
| 4820-01-018-1584 (4820010181584) | 4820-01-322-8071 (4820013228071) | 4820-01-318-2830 (4820013182830) | 4820-01-340-5738 (4820013405738) | |
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