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121AVM10000-3 — BOLT,INTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

121AVM10000-3: BOLT,INTERNALLY RELIEVED BODY.

The BOLT,INTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include head_style: FLAT CHAMFER, head_height: 0.750 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 1.000 INCHES NOMINAL IN, thread_length: 0.875 INCHES NOMINAL IN, fastener_length: 2.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-727-9078, 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
121AVM10000-3
NSN: 5306-00-727-9078
FSC: 5306 — Bolts
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
head_styleFLAT CHAMFER
head_height0.750 INCHES NOMINAL IN
thread_class3A A
head_diameter1.000 INCHES NOMINAL IN
thread_length0.875 INCHES NOMINAL IN
fastener_length2.250 INCHES NOMINAL IN
counterbore_depth0.875 INCHES NOMINAL IN
concentric_hole_depth1.125 INCHES NOMINAL IN
internal_thread_class3B CONCENTRIC HOLE
concentric_hole_diameter0.281 INCHES NOMINAL IN
NSN5306-00-727-9078
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 121AVM10000-3 · 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: 0.750 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.250 INCHES NOMINAL IN
•
CONCENTRIC HOLE DEPTH: 1.125 INCHES NOMINAL IN
•
THREAD LENGTH: 0.875 INCHES NOMINAL IN
•
COUNTERBORE DEPTH: 0.875 INCHES NOMINAL IN
•
HEAD STYLE: FLAT CHAMFER
•
INTERNAL THREAD CLASS: 3B CONCENTRIC HOLE
•
CONCENTRIC HOLE DIAMETER: 0.281 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.750 INCHES NOMINAL IN
FASTENER LENGTH2.250 INCHES NOMINAL IN
CONCENTRIC HOLE DEPTH1.125 INCHES NOMINAL IN
THREAD LENGTH0.875 INCHES NOMINAL IN
COUNTERBORE DEPTH0.875 INCHES NOMINAL IN
HEAD STYLEFLAT CHAMFER
INTERNAL THREAD CLASS3B CONCENTRIC HOLE
CONCENTRIC HOLE DIAMETER0.281 INCHES NOMINAL IN
THREAD CLASS3A A
HEAD DIAMETER1.000 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-004-7044 5306-00-007-6129 5306-00-008-7899 5306-00-009-4739 5306-00-118-7332 5306-00-151-1777 5306-00-255-4507 5306-01-101-2459
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 121AVM10000-3?
121AVM10000-3 is a BOLT,INTERNALLY RELIEVED BODY.
What is the NSN for 121AVM10000-3?
121AVM10000-3 is cataloged in the U.S. Government catalog under NSN 5306-00-727-9078. 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.