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Technical Data Sheet
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51738 — Technical Data Sheet

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Esselte · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The CABLE ASSEMBLY,RADIO FREQUENCY is a Esselte cable assembly designed for reliable internal or external connectivity in enterprise server and storage environments. Key specifications include material: STEEL FIRST POSITION CONDUCTOR SINGLE CONDUCTOR, head_style: ROUND, head_height: 0.160 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN, temp_rating: -40.0 CELSIUS AND 125.0 CELSIUS DEGC, thread_class: 2A A, head_diameter: 0.443 INCHES MINIMUM AND 0.472 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System under NSN 5305-00-275-9837, 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
51738
NSN: 5305-00-275-9837
FSC: 5305
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
materialSTEEL FIRST POSITION CONDUCTOR SINGLE CONDUCTOR
head_styleROUND
head_height0.160 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
temp_rating-40.0 CELSIUS AND 125.0 CELSIUS DEGC
thread_class2A A
head_diameter0.443 INCHES MINIMUM AND 0.472 INCHES MAXIMUM IN
thread_length0.375 INCHES NOMINAL IN
conductor_formSOLID SINGLE CONDUCTOR
overall_length3.900 INCHES IN
screw_materialSTEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020
fastener_length0.375 INCHES NOMINAL IN
termination_typeCONNECTOR INTERNAL ANGLE BOTH ENDS SINGLE CONDUCTOR
NSN5305-00-275-9837
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 51738 · Esselte ⚠ 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
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020
•
HEAD DIAMETER: 0.443 INCHES MINIMUM AND 0.472 INCHES MAXIMUM IN
•
HEAD STYLE: ROUND
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
THREAD CLASS: 2A A
•
HEAD HEIGHT: 0.160 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020
HEAD DIAMETER0.443 INCHES MINIMUM AND 0.472 INCHES MAXIMUM IN
HEAD STYLEROUND
NOMINAL THREAD DIAMETER0.250 INCHES IN
THREAD CLASS2A A
HEAD HEIGHT0.160 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633 FED SPEC ALL MATERIAL RESPONSES
FASTENER LENGTH0.375 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
113954InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
135X25InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
187201InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
56430InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1560U6-304-3InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
C2E877InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51738?
51738 is a CABLE ASSEMBLY,RADIO FREQUENCY manufactured by Esselte.
What parts can replace 51738?
There are 12 known substitutes for 51738: 113954, 135X25, 187201 and 9 more. Substitute compatibility should be verified for your specific system.
Is 51738 still available?
51738 is currently cancelled.
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Last verified: October 2026