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2-50772-505 — BOLT,INTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

2-50772-505: BOLT,INTERNALLY RELIEVED BODY.

The BOLT,INTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 7075 OVERALL, head_style: HEXAGON, head_height: 0.130 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.880 INCHES MINIMUM AND 0.920 INCHES MAXIMUM IN, fastener_length: 0.970 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-165-2176, 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
2-50772-505
NSN: 5306-00-165-2176
FSC: 5306 — Bolts
CAGE: 79U29 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075 OVERALL
head_styleHEXAGON
head_height0.130 INCHES NOMINAL IN
thread_class3A A
thread_length0.880 INCHES MINIMUM AND 0.920 INCHES MAXIMUM IN
fastener_length0.970 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN
style_designatorCONCENTRIC HOLE UNTHREADED
thread_directionRIGHT-HAND
surface_treatmentANODIZE OVERALL
width_between_flats0.750 INCHES NOMINAL IN
nominal_thread_diameter0.625 INCHES IN
concentric_hole_diameter0.5000 INCHES MINIMUM AND 0.5005 INCHES MAXIMUM IN
NSN5306-00-165-2176
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2-50772-505 · 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: 0.130 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.970 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.880 INCHES MINIMUM AND 0.920 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: CONCENTRIC HOLE UNTHREADED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/9 T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.130 INCHES NOMINAL IN
FASTENER LENGTH0.970 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN
THREAD LENGTH0.880 INCHES MINIMUM AND 0.920 INCHES MAXIMUM IN
STYLE DESIGNATORCONCENTRIC HOLE UNTHREADED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/9 T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.625 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.750 INCHES NOMINAL IN
CONCENTRIC HOLE DIAMETER0.5000 INCHES MINIMUM AND 0.5005 INCHES MAXIMUM IN
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 2-50772-505?
2-50772-505 is a BOLT,INTERNALLY RELIEVED BODY.
What is the NSN for 2-50772-505?
2-50772-505 is cataloged in the U.S. Government catalog under NSN 5306-00-165-2176. 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.