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23719R1 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

23719R1: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.591 INCHES MINIMUM AND 0.672 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.500 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN, fastener_length: 1.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-266-8375, 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
23719R1
NSN: 5305-01-266-8375
FSC: 5305 — Screws
CAGE: 0SAT8 — KOMATSU AMERICA CORP. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.591 INCHES MINIMUM AND 0.672 INCHES MAXIMUM IN
thread_class2A A
thread_length1.500 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
fastener_length1.750 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPHOSPHATE OVERALL
width_between_flats1.469 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
nominal_thread_diameter1.000 INCHES IN
thread_quantity_per_inch8
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-266-8375
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 23719R1 · 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: 0.591 INCHES MINIMUM AND 0.672 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.750 INCHES NOMINAL IN
•
THREAD LENGTH: 1.500 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 1.000 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 1.469 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.591 INCHES MINIMUM AND 0.672 INCHES MAXIMUM IN
FASTENER LENGTH1.750 INCHES NOMINAL IN
THREAD LENGTH1.500 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER1.000 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS1.469 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
SURFACE TREATMENTPHOSPHATE OVERALL
THREAD CLASS2A A
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES 1
26719R1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 23719R1?
23719R1 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 23719R1?
There is 1 known substitute for 23719R1: 26719R1. Substitute compatibility should be verified for your specific system.
What is the NSN for 23719R1?
23719R1 is cataloged in the U.S. Government catalog under NSN 5305-01-266-8375. 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.