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A02HS129-6 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

A02HS129-6: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY BODY, bonnet_type: INSIDE SPRING, thread_class: 3B ALL ENDS, connection_type: THREADED INTERNAL BOSS ALL ENDS, connection_style: GASKET SEAL(BOSS) ALL ENDS, style_designator: STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF SEPARABLE SECTIONS.. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-024-6336, 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
A02HS129-6
NSN: 4820-01-024-6336
FSC: 4820 — Valves, Nonpowered
CAGE: 77272 — THE BOEING COMPANY (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BODY
bonnet_typeINSIDE SPRING
thread_class3B ALL ENDS
connection_typeTHREADED INTERNAL BOSS ALL ENDS
connection_styleGASKET SEAL(BOSS) ALL ENDS
style_designatorSTRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF SEPARABLE SECTIONS.
thread_directionRIGHT-HAND ALL ENDS
features_providedPRESSURE TIGHT OUTLET SIDE
operating_pressure4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_devicePOPPET
nominal_thread_size0.750 INCHES ALL ENDS IN
NSN4820-01-024-6336
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A02HS129-6 · 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
SUBSTITUTES & CROSS-REFERENCES 2
1A056Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
A02HS129Reference document
Same NSN cross-reference
Reference document — Drawing number 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 A02HS129-6?
A02HS129-6 is a VALVE,SAFETY RELIEF.
What parts can replace A02HS129-6?
There are 2 known substitutes for A02HS129-6: 1A056, A02HS129. Substitute compatibility should be verified for your specific system.
What is the NSN for A02HS129-6?
A02HS129-6 is cataloged in the U.S. Government catalog under NSN 4820-01-024-6336. 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.