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128WM10057-1 — BOLT,INTERNAL WRENCHING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

128WM10057-1: BOLT,INTERNAL WRENCHING.

The BOLT,INTERNAL WRENCHING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_height: 1.000 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 1.437 INCHES NOMINAL IN, thread_length: 0.875 INCHES MINIMUM IN, fastener_length: 3.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-063-9143, 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
128WM10057-1
NSN: 5306-00-063-9143
FSC: 5306 — Bolts
CAGE: 79RG9 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_height1.000 INCHES NOMINAL IN
thread_class3A A
head_diameter1.437 INCHES NOMINAL IN
thread_length0.875 INCHES MINIMUM IN
fastener_length3.000 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.751 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
nominal_thread_diameter1.000 INCHES IN
minimum_tensile_strength160000 POUNDS PER SQUARE INCH LBS
NSN5306-00-063-9143
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 128WM10057-1 · 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
•
WIDTH ACROSS FLATS: 0.751 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
•
HEAD HEIGHT: 1.000 INCHES NOMINAL IN
•
FASTENER LENGTH: 3.000 INCHES NOMINAL IN
•
THREAD LENGTH: 0.875 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 1.000 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MINIMUM TENSILE STRENGTH: 160000 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.751 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
HEAD HEIGHT1.000 INCHES NOMINAL IN
FASTENER LENGTH3.000 INCHES NOMINAL IN
THREAD LENGTH0.875 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER1.000 INCHES IN
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTCADMIUM OVERALL
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH LBS
INTERNAL DRIVE STYLEHEXAGON
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
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

No substitute or cross-reference records for this part.

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 128WM10057-1?
128WM10057-1 is a BOLT,INTERNAL WRENCHING.
What is the NSN for 128WM10057-1?
128WM10057-1 is cataloged in the U.S. Government catalog under NSN 5306-00-063-9143. 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.