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1757000 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1757000: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: STEEL BODY, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL TUBE THIRD END, connection_style: FLARELESS (TUBE) THIRD END, style_designator: ANGLE, thread_direction: RIGHT-HAND FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-930-4074, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
1757000
NSN: 4820-00-930-4074
FSC: 4820 — Valves, Nonpowered
CAGE: G1005 — SIELMAN S.A. (GRC)
SPECIFICATIONS
materialSTEEL BODY
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL TUBE THIRD END
connection_styleFLARELESS (TUBE) THIRD END
style_designatorANGLE
thread_directionRIGHT-HAND FIRST END
surface_treatmentCADMIUM LOCATION NOT OTHERWISE SPECIFIED
operating_pressure900.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_devicePOPPET
nominal_thread_size0.875 INCHES FIRST END IN
valve_operation_methodAUTOMATIC
NSN4820-00-930-4074
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1757000 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FLOW CONTROL DEVICE: POPPET
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,CLASS 3,TYPE II FED SPEC SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED
•
CONNECTION STYLE: FLARELESS (TUBE) THIRD END
•
CONNECTION TYPE: THREADED EXTERNAL TUBE THIRD END
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPOPPET
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,CLASS 3,TYPE II FED SPEC SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED
CONNECTION STYLEFLARELESS (TUBE) THIRD END
CONNECTION STYLEFLARELESS (TUBE) SECOND END
CONNECTION STYLEDOUBLE THREADED SECTION BOSS FITTING GASKET WITH LOCKNUT SEALING (BOSS) FIRST END
CONNECTION TYPETHREADED EXTERNAL TUBE THIRD END
CONNECTION TYPETHREADED EXTERNAL BOSS FIRST END
CONNECTION TYPETHREADED EXTERNAL TUBE SECOND END
STYLE DESIGNATORANGLE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-13048 MIL SPEC SINGLE MATERIAL RESPONSE BODY
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 2
11593818Reference document
Same NSN cross-reference
Reference document — Secondary reference
4820009304074Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 1757000?
1757000 is a VALVE,SAFETY RELIEF.
What parts can replace 1757000?
There are 2 known substitutes for 1757000: 11593818, 4820009304074. Substitute compatibility should be verified for your specific system.
What is the NSN for 1757000?
1757000 is cataloged in the U.S. Government catalog under NSN 4820-00-930-4074. This indicates validated use in U.S. government and defense supply chains.
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