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51156D — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

51156D: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: PLASTIC OVERALL, thread_length: 0.165 INCHES NOMINAL SINGLE THREADED PORTION IN, overall_height: 0.315 INCHES NOMINAL IN, special_features: OCTAGONAL INTERNAL WRENCHING FEATURE,0.562 IN. IN, style_designator: PLAIN THREADED, seat_angle_in_deg: 0.500 NOMINAL.

This part is cataloged in the U.S. Government catalog under NSN 4820-00-920-2722, 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
51156D
NSN: 4820-00-920-2722
FSC: 4820 — Valves, Nonpowered
CAGE: 76364 — MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC (USA)
SPECIFICATIONS
materialPLASTIC OVERALL
thread_length0.165 INCHES NOMINAL SINGLE THREADED PORTION IN
overall_height0.315 INCHES NOMINAL IN
special_featuresOCTAGONAL INTERNAL WRENCHING FEATURE,0.562 IN. IN
style_designatorPLAIN THREADED
seat_angle_in_deg0.500 NOMINAL
nominal_thread_size0.938 INCHES SINGLE THREADED PORTION IN
body_inside_diameter0.938 INCHES NOMINAL IN
seating_surface_shapeANGULAR
thread_quantity_per_inch24 SINGLE THREADED PORTION
thread_series_designatorUNS SINGLE THREADED PORTION
NSN4820-00-920-2722
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 51156D · 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: 0.165 INCHES NOMINAL SINGLE THREADED PORTION IN
•
STYLE DESIGNATOR: PLAIN THREADED
•
BODY INSIDE DIAMETER: 0.938 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.938 INCHES SINGLE THREADED PORTION IN
•
THREAD QUANTITY PER INCH: 24 SINGLE THREADED PORTION
•
MATERIAL: PLASTIC OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.315 INCHES NOMINAL IN
THREAD LENGTH0.165 INCHES NOMINAL SINGLE THREADED PORTION IN
STYLE DESIGNATORPLAIN THREADED
BODY INSIDE DIAMETER0.938 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.938 INCHES SINGLE THREADED PORTION IN
SPECIAL FEATURESOCTAGONAL INTERNAL WRENCHING FEATURE,0.562 IN. IN
THREAD QUANTITY PER INCH24 SINGLE THREADED PORTION
MATERIALPLASTIC OVERALL
SEAT ANGLE IN DEG0.500 NOMINAL
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
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 demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 51156D?
51156D is a SEAT,VALVE.
What is the NSN for 51156D?
51156D is cataloged in the U.S. Government catalog under NSN 4820-00-920-2722. This indicates validated use in U.S. government and defense supply chains.
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