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31-537 — SWITCH,LOCK,IGNITION

✓ Government record, cited
Aquabeads · BOLT SCREW
PRODUCT OVERVIEW

31-537: SWITCH,LOCK,IGNITION.

The SWITCH,LOCK,IGNITION is a Aquabeads industrial component. Key specifications include phase: SINGLE, material: COPPER ALLOY BODY, body_style: BUSHING MOUNTED, head_style: FLAT COUNTERSUNK, seat_angle: 37.0 DEGREES SECOND END, bonnet_type: INSIDE SCREW. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-149-7113, 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
31-537
NSN: 5305-00-149-7113
NIINs: 001497113, 007257164, 009155308, 012062318, 014692357, 016944566
FSC: 5305 — Screws
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
phaseSINGLE
materialCOPPER ALLOY BODY
body_styleBUSHING MOUNTED
head_styleFLAT COUNTERSUNK
seat_angle37.0 DEGREES SECOND END
bonnet_typeINSIDE SCREW
flange_shapeOVAL WITH HOLES FIRST END
thread_class3A SECOND END A
head_diameter0.469 INCHES NOMINAL IN
nominal_width1.366 INCHES FIRST END IN
thread_length1.125 INCHES MINIMUM IN
nominal_length2.426 INCHES FIRST END IN
NSN5305-00-149-7113
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 31-537 · Aquabeads ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FASTENER LENGTH: 1.344 INCHES NOMINAL IN
•
THREAD LENGTH: 1.125 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: STEEL COMP 1335H OR STEEL COMP 6150
•
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
•
COUNTERSINK ANGLE: 82.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS
FASTENER LENGTH1.344 INCHES NOMINAL IN
THREAD LENGTH1.125 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL COMP 1335H OR STEEL COMP 6150
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
COUNTERSINK ANGLE82.0 DEGREES NOMINAL
THREAD CLASS3A A
THREAD QUANTITY PER INCH20
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 31-537?
31-537 is a SWITCH,LOCK,IGNITION manufactured by Aquabeads.
What is the NSN for 31-537?
31-537 is cataloged in the U.S. Government catalog under NSN 5305-00-149-7113. This indicates validated use in U.S. government and defense supply chains.
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