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Technical Data Sheet

P31-673 — Technical Data Sheet

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— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OVERALL, bonnet_type: PACKING RETAINING, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL BOSS ALL ENDS, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS, style_designator: STRAIGHT THRU. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4820-00-814-0226, 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
P31-673
NSN: 4820-00-814-0226
FSC: 4820
CAGE: 91816 — CIRCOR AEROSPACE, INC. DBA CIRCOR AEROSPACE INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OVERALL
bonnet_typePACKING RETAINING
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL BOSS ALL ENDS
connection_styleEXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND ALL ENDS
features_providedPRESSURE TIGHT OUTLET SIDE
surface_treatmentANODIZE LOCATION NOT OTHERWISE SPECIFIED
disk_loading_methodSPRING
flow_control_devicePOPPET
nominal_thread_size0.250 INCHES ALL ENDS IN
NSN4820-00-814-0226
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: P31-673 · 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: EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
•
CONNECTION TYPE: THREADED EXTERNAL BOSS ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU
•
THREAD CLASS: 2A ALL ENDS A
•
VALVE OPERATION METHOD: AUTOMATIC
•
MATERIAL: ALUMINUM ALLOY 2024 OVERALL
•
MEDIA FOR WHICH DESIGNED: FUEL/OIL, HYDROCARBON SINGLE RESPONSE
•
FLOW CONTROL DEVICE: POPPET
TECHNICAL CHARACTERISTICS
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL BOSS ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
THREAD CLASS2A ALL ENDS A
VALVE OPERATION METHODAUTOMATIC
MATERIALALUMINUM ALLOY 2024 OVERALL
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON SINGLE RESPONSE
FLOW CONTROL DEVICEPOPPET
OPENING PRESSURE SETTING5.0 POUNDS PER SQUARE INCH LBS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
G525InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
50813InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
28873InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5915PL1062771InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
256-5InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
F30-12-4NInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is P31-673?
P31-673 is a VALVE,SAFETY RELIEF.
What parts can replace P31-673?
There are 16 known substitutes for P31-673: G525, 50813, 28873 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for P31-673?
P31-673 is cataloged in the Federal Logistics Information System under NSN 4820-00-814-0226. This indicates validated use in U.S. government and defense supply chains.
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