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PBF1704 — BOLT,ASSEMBLED SLEEVE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

PBF1704: BOLT,ASSEMBLED SLEEVE.

The BOLT,ASSEMBLED SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 OR STEEL COMP 6150 OVERALL, head_style: DOUBLE HEXAGON EXTENDED WASHERDOUBLE HEXAGON EXTENDED WASHER, head_height: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN, thread_class: 3A3A, thread_length: 0.335 INCHES NOMINAL0.335 INCHES NOMINAL IN, fastener_length: 0.745 INCHES NOMINAL0.745 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-503-2195, 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
PBF1704
NSN: 5306-01-503-2195
FSC: 5306 — Bolts
CAGE: 27624 — SPS TECHNOLOGIES LLC DBA PB FASTENERS DIV PB FASTENERS (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 OR STEEL COMP 6150 OVERALL
head_styleDOUBLE HEXAGON EXTENDED WASHERDOUBLE HEXAGON EXTENDED WASHER
head_height0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
thread_class3A3A
thread_length0.335 INCHES NOMINAL0.335 INCHES NOMINAL IN
fastener_length0.745 INCHES NOMINAL0.745 INCHES NOMINAL IN
hardness_rating39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
special_featuresHAS FOUR 0.32 TO 0.42 IN. DIAMETER HOLES IN HEX HEAD IN
thread_directionRIGHT-HANDRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_between_flats0.304 INCHES MINIMUM AND 0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM0.313 INCHES MAXIMUM IN
nominal_thread_diameter0.248 INCHES0.248 INCHES IN
NSN5306-01-503-2195
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: PBF1704 · 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: 0.126 INCHES NOMINAL0.126 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.745 INCHES NOMINAL0.745 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416, TYPE 2, CLASSS 2 FED SPEC 1ST TREATMENT RESPONSE OVERALL
•
EXTENDED WASHER DIAMETER: 0.428 INCHES MINIMUM AND 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM0.438 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.335 INCHES NOMINAL0.335 INCHES NOMINAL IN
•
HARDNESS RATING: 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.126 INCHES NOMINAL0.126 INCHES NOMINAL IN
HEAD HEIGHT0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
FASTENER LENGTH0.745 INCHES NOMINAL0.745 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416, TYPE 2, CLASSS 2 FED SPEC 1ST TREATMENT RESPONSE OVERALL
EXTENDED WASHER DIAMETER0.428 INCHES MINIMUM AND 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM0.438 INCHES MAXIMUM IN
THREAD LENGTH0.335 INCHES NOMINAL0.335 INCHES NOMINAL IN
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.248 INCHES0.248 INCHES IN
HEAD STYLEDOUBLE HEXAGON EXTENDED WASHERDOUBLE HEXAGON EXTENDED WASHER
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES 1
C64134-001Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is PBF1704?
PBF1704 is a BOLT,ASSEMBLED SLEEVE.
What parts can replace PBF1704?
There is 1 known substitute for PBF1704: C64134-001. Substitute compatibility should be verified for your specific system.
What is the NSN for PBF1704?
PBF1704 is cataloged in the U.S. Government catalog under NSN 5306-01-503-2195. 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.