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398307 — ENGINE BLOCK,GASOLINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

398307: ENGINE BLOCK,GASOLINE.

The ENGINE BLOCK,GASOLINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8740 OVERALL, hole_type: DRILLED, head_style: DOUBLE HEXAGON W/HOLE, head_height: 0.360 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN, thread_class: 3A A, hole_diameter: 0.062 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-804-4331, 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
398307
NSN: 5306-00-804-4331
NIINs: 008044331, 012353136
FSC: 5306 — Bolts
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 8740 OVERALL
hole_typeDRILLED
head_styleDOUBLE HEXAGON W/HOLE
head_height0.360 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
thread_class3A A
hole_diameter0.062 INCHES NOMINAL IN
hole_quantity4
thread_length0.907 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN
fastener_length0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
NSN5306-00-804-4331
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 398307 · OEM ⚠ 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
•
EXTENDED WASHER THICKNESS: 0.090 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.360 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
•
EXTENDED WASHER DIAMETER: 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.907 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN
•
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
•
HOLE CONFIGURATION STYLE: DOUBLE HEXAGON LONGITUDINAL HOLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.090 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN
HEAD HEIGHT0.360 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
FASTENER LENGTH0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
EXTENDED WASHER DIAMETER0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
THREAD LENGTH0.907 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HOLE CONFIGURATION STYLEDOUBLE HEXAGON LONGITUDINAL HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES IN
FEATURES PROVIDEDFINISHED HEAD
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 398307?
398307 is a ENGINE BLOCK,GASOLINE.
What is the NSN for 398307?
398307 is cataloged in the U.S. Government catalog under NSN 5306-00-804-4331. This indicates validated use in U.S. government and defense supply chains.
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