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17634 — TRANSFORMER,POWER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

17634: TRANSFORMER,POWER.

The TRANSFORMER,POWER is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, body_width: 3.687 INCHES NOMINAL IN, head_style: FILLISTER, body_height: 4.500 INCHES NOMINAL IN, body_length: 4.312 INCHES NOMINAL IN, head_height: 0.203 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-147-2670, 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
17634
NSN: 5305-00-147-2670
NIINs: 001472670, 006455593, 011265205, 011781190, 013416527, 013957802, 014213400, 014599168
FSC: 5305 — Screws
CAGE: 00198 — PRATT & WHITNEY CANADA CORP DIV PRATT & WHITNEY CANADA CORP. (CAN)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
body_width3.687 INCHES NOMINAL IN
head_styleFILLISTER
body_height4.500 INCHES NOMINAL IN
body_length4.312 INCHES NOMINAL IN
head_height0.203 INCHES NOMINAL IN
thread_class3A A
head_diameter0.375 INCHES NOMINAL IN
hole_quantity2
thread_length0.438 INCHES MINIMUM IN
inclosure_typeHERMETICALLY SEALED
screw_materialSTEEL COMP 6150 OR STEEL COMP 4640
NSN5305-00-147-2670
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 17634 · 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
•
HEAD HEIGHT: 0.203 INCHES NOMINAL IN
•
SCREW SURFACE TREATMENT: CADMIUM
•
FASTENER LENGTH: 1.062 INCHES NOMINAL IN
•
THREAD LENGTH: 0.438 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: FILLISTER
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: STEEL COMP 6150 OR STEEL COMP 4640
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.203 INCHES NOMINAL IN
SCREW SURFACE TREATMENTCADMIUM
FASTENER LENGTH1.062 INCHES NOMINAL IN
THREAD LENGTH0.438 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEFILLISTER
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL COMP 6150 OR STEEL COMP 4640
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
THREAD CLASS3A A
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 17634?
17634 is a TRANSFORMER,POWER.
What is the NSN for 17634?
17634 is cataloged in the U.S. Government catalog under NSN 5305-00-147-2670. 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.