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BLT8048 — BOLT,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

BLT8048: BOLT,EXTERNALLY RELIEVED BODY.

The BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_type: DRILLED, head_style: DOUBLE HEXAGON W/HOLE, head_height: 0.405 INCHES NOMINAL IN, thread_class: 3A A, hole_diameter: 0.063 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-883-5918, 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
BLT8048
NSN: 5306-00-883-5918
FSC: 5306 — Bolts
CAGE: K0680 — ROLLS-ROYCE AIRLINES (GBR)
SPECIFICATIONS
materialSTEEL OVERALL
hole_typeDRILLED
head_styleDOUBLE HEXAGON W/HOLE
head_height0.405 INCHES NOMINAL IN
thread_class3A A
hole_diameter0.063 INCHES NOMINAL IN
hole_quantity4
thread_length0.475 INCHES MINIMUM IN
fastener_length1.475 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_between_flats0.432 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
NSN5306-00-883-5918
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: BLT8048 · 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: 0.075 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.405 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.475 INCHES NOMINAL IN
•
EXTENDED WASHER DIAMETER: 0.715 INCHES MINIMUM AND 0.725 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.475 INCHES MINIMUM IN
•
HOLE CONFIGURATION STYLE: HEXAGON LONGITUDINAL HOLE
•
FIRST DIAMETER FROM HEAD: 0.319 INCHES MINIMUM AND 0.321 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.075 INCHES NOMINAL IN
HEAD HEIGHT0.405 INCHES NOMINAL IN
FASTENER LENGTH1.475 INCHES NOMINAL IN
EXTENDED WASHER DIAMETER0.715 INCHES MINIMUM AND 0.725 INCHES MAXIMUM IN
THREAD LENGTH0.475 INCHES MINIMUM IN
HOLE CONFIGURATION STYLEHEXAGON LONGITUDINAL HOLE
FIRST DIAMETER FROM HEAD0.319 INCHES MINIMUM AND 0.321 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEDOUBLE HEXAGON W/HOLE
THREAD DIRECTIONRIGHT-HAND
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 2
23039726Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
6825434Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 BLT8048?
BLT8048 is a BOLT,EXTERNALLY RELIEVED BODY.
What parts can replace BLT8048?
There are 2 known substitutes for BLT8048: 23039726, 6825434. Substitute compatibility should be verified for your specific system.
What is the NSN for BLT8048?
BLT8048 is cataloged in the U.S. Government catalog under NSN 5306-00-883-5918. 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.