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EWB1615W4H2 — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

EWB1615W4H2: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, hole_type: DRILLED, head_style: DOUBLE HEXAGON W/HOLE, grip_length: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN, head_height: 0.300 INCHES NOMINAL IN, thread_class: 3A A. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-548-5829, 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
EWB1615W4H2
NSN: 5306-00-548-5829
FSC: 5306 — Bolts
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
hole_typeDRILLED
head_styleDOUBLE HEXAGON W/HOLE
grip_length0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
head_height0.300 INCHES NOMINAL IN
thread_class3A A
grip_diameter0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
hole_diameter0.037 INCHES NOMINAL IN
hole_quantity2
thread_length0.460 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES BEARING SURFACE OF HEAD
fastener_length0.595 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
NSN5306-00-548-5829
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: EWB1615W4H2 · 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
•
SURFACE FINISH: 32.0 MICROINCHES GRIP
•
EXTENDED WASHER THICKNESS: 0.069 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.300 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.595 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
•
EXTENDED WASHER DIAMETER: 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.460 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
•
HOLE CONFIGURATION STYLE: HEXAGON LONGITUDINAL HOLE
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
EXTENDED WASHER THICKNESS0.069 INCHES NOMINAL IN
HEAD HEIGHT0.300 INCHES NOMINAL IN
FASTENER LENGTH0.595 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
EXTENDED WASHER DIAMETER0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
THREAD LENGTH0.460 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
HOLE CONFIGURATION STYLEHEXAGON LONGITUDINAL HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5708 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
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
GB511CH4W2HSame 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 EWB1615W4H2?
EWB1615W4H2 is a BOLT,CLOSE TOLERANCE.
What parts can replace EWB1615W4H2?
There is 1 known substitute for EWB1615W4H2: GB511CH4W2H. Substitute compatibility should be verified for your specific system.
What is the NSN for EWB1615W4H2?
EWB1615W4H2 is cataloged in the U.S. Government catalog under NSN 5306-00-548-5829. 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.