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P18 — THERMAL RELEASE,CIRCUIT BREAKER

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

P18: THERMAL RELEASE,CIRCUIT BREAKER.

THERMAL RELEASE,CIRCUIT BREAKER. Key specifications include material: RUBBER SYNTHETIC, tip_type: PHILLIPS CROSS, body_type: SOLID, head_type: SOLID, thickness: 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN, drive_type: SQUARE HEAD. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-238-7157, 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
MRO→ MRO_GENERAL→ P18
NSN: 5315-00-238-7157
NIINs: 002387157, 003887153, 004003077, 005293101, 006729226, 007026932, 008265984, 010159422, 011025394, 011548099, 013258510, 014752744, 016562472
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 51261 — CONTRAVES INC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
tip_typePHILLIPS CROSS
body_typeSOLID
head_typeSOLID
thickness0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
drive_typeSQUARE HEAD
design_typeLIMITED
blade_length1.062 INCHES NOMINAL IN
body_diameter0.490 INCHES NOMINAL IN
bore_diameter0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN
overall_width0.500 INCHES NOMINAL IN
flow_directionINSIDE OUT
NSN5315-00-238-7157
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: P18 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FIRST END LOCATION: SMALL END
•
FIRST END STYLE: OVAL
•
HARDNESS RATING: 100.0 ROCKWELL B NOMINAL OVERALL
•
STYLE DESIGNATOR: FULL LENGTH GROOVE
•
PIN LARGE END DIAMETER: 0.116 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD ALL MATERIAL RESPONSES OVERALL
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
TECHNICAL CHARACTERISTICS
FIRST END LOCATIONSMALL END
FIRST END STYLEOVAL
HARDNESS RATING100.0 ROCKWELL B NOMINAL OVERALL
STYLE DESIGNATORFULL LENGTH GROOVE
PIN LARGE END DIAMETER0.116 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD ALL MATERIAL RESPONSES OVERALL
OVERALL LENGTH0.500 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
PIN SMALL END DIAMETER0.1084 INCHES MINIMUM AND 0.1094 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
1Reference document
R970
Reference document — Design control — primary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is P18?
P18 is a THERMAL RELEASE,CIRCUIT BREAKER. It is classified as a MRO (MRO_GENERAL).
What parts can replace P18?
There is 1 known substitute for P18: 1. Substitute compatibility should be verified for your specific system.
What is the NSN for P18?
P18 is cataloged in the U.S. Government catalog under NSN 5315-00-238-7157. This indicates validated use in U.S. government and defense supply chains.
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