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AB-A671-3D3 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

AB-A671-3D3: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY BODY, thread_class: 3A ALL ENDS A, thread_direction: RIGHT-HAND ALL ENDS, disk_loading_method: SPRING, flow_control_device: POPPET, nominal_thread_size: 1.188 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-118-3166, 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
AB-A671-3D3
NSN: 4820-01-118-3166
FSC: 4820 — Valves, Nonpowered
CAGE: 18350 — PALL AEROPOWER CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BODY
thread_class3A ALL ENDS A
thread_directionRIGHT-HAND ALL ENDS
disk_loading_methodSPRING
flow_control_devicePOPPET
nominal_thread_size1.188 INCHES ALL ENDS IN
valve_operation_methodAUTOMATIC
thread_series_designatorUNF ALL ENDS
NSN4820-01-118-3166
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: AB-A671-3D3 · 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
•
CONNECTION TYPE: THREADED CARTRIDGE ALL ENDS
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
•
NOMINAL THREAD SIZE: 1.188 INCHES ALL ENDS IN
•
DISK LOADING METHOD: SPRING
•
THREAD CLASS: 3A ALL ENDS A
•
MATERIAL: ALUMINUM ALLOY BODY
•
THREAD SERIES DESIGNATOR: UNF ALL ENDS
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPOPPET
CONNECTION TYPETHREADED CARTRIDGE ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
NOMINAL THREAD SIZE1.188 INCHES ALL ENDS IN
DISK LOADING METHODSPRING
THREAD CLASS3A ALL ENDS A
MATERIALALUMINUM ALLOY BODY
THREAD SERIES DESIGNATORUNF ALL ENDS
VALVE OPERATION METHODAUTOMATIC
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is AB-A671-3D3?
AB-A671-3D3 is a VALVE,SAFETY RELIEF.
What is the NSN for AB-A671-3D3?
AB-A671-3D3 is cataloged in the U.S. Government catalog under NSN 4820-01-118-3166. 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.