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34357 — REACTOR

✓ Government record, cited
Trefl · BOLT SCREW
PRODUCT OVERVIEW

34357: REACTOR.

The REACTOR is a Trefl industrial component. Key specifications include body_width: 1.281 INCHES NOMINAL IN, head_style: ROUND, body_height: 1.312 INCHES NOMINAL IN, body_length: 1.250 INCHES NOMINAL IN, head_height: 0.188 INCHES NOMINAL IN, thread_class: 3A A. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-292-8876, 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
34357
NSN: 5305-00-292-8876
NIINs: 002928876, 005535808, 014072361
FSC: 5305 — Screws
CAGE: 35301 — DRESSER INDUSTRIES INC LEROI DIV (USA)
SPECIFICATIONS
body_width1.281 INCHES NOMINAL IN
head_styleROUND
body_height1.312 INCHES NOMINAL IN
body_length1.250 INCHES NOMINAL IN
head_height0.188 INCHES NOMINAL IN
thread_class3A A
head_diameter0.438 INCHES NOMINAL IN
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
thread_length0.500 INCHES MAXIMUM IN
inclosure_typeOPEN
screw_materialSTEEL COMP 1020
fastener_length0.500 INCHES NOMINAL IN
NSN5305-00-292-8876
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 34357 · Trefl ⚠ 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
•
HEAD HEIGHT: 0.188 INCHES NOMINAL IN
•
SCREW SURFACE TREATMENT: CADMIUM
•
FASTENER LENGTH: 0.500 INCHES NOMINAL IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-630 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-631 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE
•
THREAD LENGTH: 0.500 INCHES MAXIMUM IN
•
HARDNESS RATING: 64.0 ROCKWELL C NOMINAL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: ROUND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.188 INCHES NOMINAL IN
SCREW SURFACE TREATMENTCADMIUM
FASTENER LENGTH0.500 INCHES NOMINAL IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-630 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-631 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE
THREAD LENGTH0.500 INCHES MAXIMUM IN
HARDNESS RATING64.0 ROCKWELL C NOMINAL
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEROUND
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL COMP 1020
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 34357?
34357 is a REACTOR manufactured by Trefl.
What is the NSN for 34357?
34357 is cataloged in the U.S. Government catalog under NSN 5305-00-292-8876. This indicates validated use in U.S. government and defense supply chains.
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