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56B23438-3 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

56B23438-3: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include thread_class: 3B FIRST END, connection_type: THREADED EXTERNAL BOSS SECOND END, connection_style: GASKET SEAL(BOSS) FIRST END, style_designator: ANGLE, thread_direction: RIGHT-HAND FIRST END, features_provided: PRESSURE TIGHT OUTLET SIDE. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-672-6581, 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
56B23438-3
NSN: 4820-00-672-6581
FSC: 4820 — Valves, Nonpowered
CAGE: 98750 — SAN ANTONIO AIR LOGISTICS CENTER (USA)
SPECIFICATIONS
thread_class3B FIRST END
connection_typeTHREADED EXTERNAL BOSS SECOND END
connection_styleGASKET SEAL(BOSS) FIRST END
style_designatorANGLE
thread_directionRIGHT-HAND FIRST END
features_providedPRESSURE TIGHT OUTLET SIDE
nominal_thread_size0.562 INCHES FIRST END IN
valve_operation_methodAUTOMATIC
thread_quantity_per_inch18 FIRST END
thread_series_designatorUNF FIRST END
adjustable_pressure_range+900.0 TO 950.0 POUNDS PER SQUARE INCH LBS
NSN4820-00-672-6581
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 56B23438-3 · 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 STYLE: GASKET SEAL(BOSS) FIRST END
•
CONNECTION TYPE: THREADED INTERNAL BOSS FIRST END
•
STYLE DESIGNATOR: ANGLE
•
ADJUSTABLE PRESSURE RANGE: +900.0 TO 950.0 POUNDS PER SQUARE INCH LBS
•
FEATURES PROVIDED: PRESSURE TIGHT OUTLET SIDE
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
NOMINAL THREAD SIZE: 0.562 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEGASKET SEAL(BOSS) FIRST END
CONNECTION TYPETHREADED INTERNAL BOSS FIRST END
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
STYLE DESIGNATORANGLE
ADJUSTABLE PRESSURE RANGE+900.0 TO 950.0 POUNDS PER SQUARE INCH LBS
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
THREAD DIRECTIONRIGHT-HAND FIRST END
NOMINAL THREAD SIZE0.562 INCHES FIRST END IN
THREAD CLASS3B FIRST END
THREAD QUANTITY PER INCH18 FIRST END
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 3
1641-8T6TSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
N1641-8T6TSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
56B23438-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 56B23438-3?
56B23438-3 is a VALVE,SAFETY RELIEF.
What parts can replace 56B23438-3?
There are 3 known substitutes for 56B23438-3: 1641-8T6T, N1641-8T6T, 56B23438-2. Substitute compatibility should be verified for your specific system.
What is the NSN for 56B23438-3?
56B23438-3 is cataloged in the U.S. Government catalog under NSN 4820-00-672-6581. This indicates validated use in U.S. government and defense supply chains.
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