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8737780 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

8737780: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include valve_size: 3.500 INCHES IN, connection_type: FLANGE SECOND END, style_designator: ANGLE FLANGED ENDS, first_connection_face_to_centerline_distance: 6.375 INCHES IN, second_connection_face_to_centerline_distance: 3.500 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-757-9934, 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
8737780
NSN: 4820-00-757-9934
FSC: 4820 — Valves, Nonpowered
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
valve_size3.500 INCHES IN
connection_typeFLANGE SECOND END
style_designatorANGLE FLANGED ENDS
first_connection_face_to_centerline_distance6.375 INCHES IN
second_connection_face_to_centerline_distance3.500 INCHES IN
NSN4820-00-757-9934
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 8737780 · 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
•
CONNECTION TYPE: FLANGE SECOND END
•
STYLE DESIGNATOR: ANGLE FLANGED ENDS
•
VALVE SIZE: 3.500 INCHES IN
•
SECOND CONNECTION FACE TO CENTERLINE DISTANCE: 3.500 INCHES IN
•
FIRST CONNECTION FACE TO CENTERLINE DISTANCE: 6.375 INCHES IN
TECHNICAL CHARACTERISTICS
CONNECTION TYPEFLANGE SECOND END
CONNECTION TYPEUNTHREADED EXTERNAL TUBE FIRST END
STYLE DESIGNATORANGLE FLANGED ENDS
VALVE SIZE3.500 INCHES IN
SECOND CONNECTION FACE TO CENTERLINE DISTANCE3.500 INCHES IN
FIRST CONNECTION FACE TO CENTERLINE DISTANCE6.375 INCHES IN
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
A41031GReference document
Same NSN cross-reference
Reference document — Secondary reference
AE1113Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8737780?
8737780 is a VALVE,SAFETY RELIEF.
What parts can replace 8737780?
There are 2 known substitutes for 8737780: A41031G, AE1113. Substitute compatibility should be verified for your specific system.
What is the NSN for 8737780?
8737780 is cataloged in the U.S. Government catalog under NSN 4820-00-757-9934. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.