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D15-631PPC659 — SOCKET,PLUG-IN ELECTRONIC COMPON

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

D15-631PPC659: SOCKET,PLUG-IN ELECTRONIC COMPON.

SOCKET,PLUG-IN ELECTRONIC COMPON. Key specifications include material: STEEL OVERALL, thread_class: 2A SINGLE THREADED PORTION A, thread_length: 0.375 INCHES NOMINAL SINGLE THREADED PORTION IN, overall_height: 0.375 INCHES NOMINAL IN, special_features: W/SLOT 0.312 IN. W IN, style_designator: PLAIN THREADED.

This part is cataloged in the U.S. Government catalog under NSN 4820-00-036-3389, 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
D15-631PPC659
NSN: 4820-00-036-3389
FSC: 4820 — Valves, Nonpowered
CAGE: 90099 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class2A SINGLE THREADED PORTION A
thread_length0.375 INCHES NOMINAL SINGLE THREADED PORTION IN
overall_height0.375 INCHES NOMINAL IN
special_featuresW/SLOT 0.312 IN. W IN
style_designatorPLAIN THREADED
seat_angle_in_deg45.000 NOMINAL
nominal_thread_size0.562 INCHES SINGLE THREADED PORTION IN
body_inside_diameter0.188 INCHES NOMINAL IN
seating_surface_shapeANGULAR
thread_series_designatorUNF SINGLE THREADED PORTION
material_document_and_classificationMIL-S-853 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4820-00-036-3389
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: D15-631PPC659 · 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
•
THREAD LENGTH: 0.375 INCHES NOMINAL SINGLE THREADED PORTION IN
•
STYLE DESIGNATOR: PLAIN THREADED
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-853 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
BODY INSIDE DIAMETER: 0.188 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.562 INCHES SINGLE THREADED PORTION IN
•
THREAD CLASS: 2A SINGLE THREADED PORTION A
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.375 INCHES NOMINAL IN
THREAD LENGTH0.375 INCHES NOMINAL SINGLE THREADED PORTION IN
STYLE DESIGNATORPLAIN THREADED
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-853 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
BODY INSIDE DIAMETER0.188 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.562 INCHES SINGLE THREADED PORTION IN
SPECIAL FEATURESW/SLOT 0.312 IN. W IN
THREAD CLASS2A SINGLE THREADED PORTION A
MATERIALSTEEL OVERALL
SEAT ANGLE IN DEG45.000 NOMINAL
SUBSTITUTES & CROSS-REFERENCES 9
D15-743BPC289Reference document
Same NSN cross-reference
Reference document — Secondary reference
D15-494JPC659Reference document
Same NSN cross-reference
Reference document — Secondary reference
D15-509NPC694Reference document
Same NSN cross-reference
Reference document — Secondary reference
D15-523NPC411Reference document
Same NSN cross-reference
Reference document — Secondary reference
D15-704QPC694Reference document
Same NSN cross-reference
Reference document — Secondary reference
D15-597JPC581Reference 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 D15-631PPC659?
D15-631PPC659 is a SOCKET,PLUG-IN ELECTRONIC COMPON.
What parts can replace D15-631PPC659?
There are 9 known substitutes for D15-631PPC659: D15-743BPC289, D15-494JPC659, D15-509NPC694 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D15-631PPC659?
D15-631PPC659 is cataloged in the U.S. Government catalog under NSN 4820-00-036-3389. 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.