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2057E127 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

2057E127: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 431 OVERALL, head_style: DEE CHAMFER, head_height: 0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.625 INCHES NOMINAL IN, thread_length: 0.590 INCHES MINIMUM AND 0.600 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-795-1032, 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
2057E127
NSN: 5306-00-795-1032
FSC: 5306 — Bolts
CAGE: 0AHP5 — CURTISS-WRIGHT CONTROLS, INC. DIV ACTUATION DIVISION (USA)
SPECIFICATIONS
materialSTEEL COMP 431 OVERALL
head_styleDEE CHAMFER
head_height0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.625 INCHES NOMINAL IN
thread_length0.590 INCHES MINIMUM AND 0.600 INCHES MAXIMUM IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length1.420 INCHES NOMINAL IN
nominal_thread_diameter0.375 INCHES IN
thread_quantity_per_inch24
thread_series_designatorUNF
distance_from_centerline_to_flat0.240 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
NSN5306-00-795-1032
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2057E127 · 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: 0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.420 INCHES NOMINAL IN
•
DISTANCE FROM CENTERLINE TO FLAT: 0.240 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.590 INCHES MINIMUM AND 0.600 INCHES MAXIMUM IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
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MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5628 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD STYLE: DEE CHAMFER
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
FASTENER LENGTH1.420 INCHES NOMINAL IN
DISTANCE FROM CENTERLINE TO FLAT0.240 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
THREAD LENGTH0.590 INCHES MINIMUM AND 0.600 INCHES MAXIMUM IN
SHOULDER SHAPEROUND FIRST SHOULDER
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5628 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEDEE CHAMFER
THREAD CLASS3A A
THREAD QUANTITY PER INCH24
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: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2057E127?
2057E127 is a BOLT,SHOULDER.
What is the NSN for 2057E127?
2057E127 is cataloged in the U.S. Government catalog under NSN 5306-00-795-1032. 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.