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551015 — PIN CLUTCH ASSEMBLY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

551015: PIN CLUTCH ASSEMBLY.

The PIN CLUTCH ASSEMBLY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, seat_radius: 0.438 INCHES NOMINAL IN, overall_height: 0.312 INCHES NOMINAL IN, style_designator: PLAIN, body_inside_diameter: 0.500 INCHES NOMINAL IN, body_outside_diameter: 2.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4810-00-375-8305, 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
551015
NSN: 4810-00-375-8305
NIINs: 003758305, 006608767
FSC: 4810 — Valves, Powered
CAGE: 59364 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - TEMPE (WEST WARNER ROAD) (USA)
SPECIFICATIONS
materialSTEEL OVERALL
seat_radius0.438 INCHES NOMINAL IN
overall_height0.312 INCHES NOMINAL IN
style_designatorPLAIN
body_inside_diameter0.500 INCHES NOMINAL IN
body_outside_diameter2.250 INCHES NOMINAL IN
seating_surface_shapeRADIAL
NSN4810-00-375-8305
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 551015 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL; INCLUDES HOUSING AND TWO PINS; ONE PIN FLUSH WITH HOUSING FACE,ONE PIN PROTRUDES 0.125 IN.; 0.250 IN. PIN DIA,1.250 IN. O/A LG; 1.156 IN. HOUSING DIA INCLUDES CAVITY FOR SPRING,1.031 IN. DIA; 0.900 IN. DEEP AND 0.058 IN. DIA HOLE CENTERED IN HOUSING FACE IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL; INCLUDES HOUSING AND TWO PINS; ONE PIN FLUSH WITH HOUSING FACE,ONE PIN PROTRUDES 0.125 IN.; 0.250 IN. PIN DIA,1.250 IN. O/A LG; 1.156 IN. HOUSING DIA INCLUDES CAVITY FOR SPRING,1.031 IN. DIA; 0.900 IN. DEEP AND 0.058 IN. DIA HOLE CENTERED IN HOUSING FACE IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 551015?
551015 is a PIN CLUTCH ASSEMBLY.
What is the NSN for 551015?
551015 is cataloged in the U.S. Government catalog under NSN 4810-00-375-8305. 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.