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121839 — UNMANNED AIRCRAFT

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

121839: UNMANNED AIRCRAFT.

The UNMANNED AIRCRAFT is a the manufacturer industrial component. Key specifications include payload: SENSOR, overall_width: 225.6 INCHES NOMINAL IN, overall_length: 114.0 INCHES NOMINAL IN, take_off_method: VERTICAL, special_features: WINGSPAN: 18.8 FT; ENDURANCE: 14 PLUS HOURS; LINK RANGE: 115 MILES FT, aircraft_function: SURVEILLANCE AND RECONNAISANCE. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-285-4540, 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
121839
NSN: 5305-00-285-4540
NIINs: 002854540, 003928939, 004119737, 016547069, 017030323
FSC: 5305 — Screws
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
payloadSENSOR
overall_width225.6 INCHES NOMINAL IN
overall_length114.0 INCHES NOMINAL IN
take_off_methodVERTICAL
special_featuresWINGSPAN: 18.8 FT; ENDURANCE: 14 PLUS HOURS; LINK RANGE: 115 MILES FT
aircraft_functionSURVEILLANCE AND RECONNAISANCE
end_item_identificationTACTICAL UNMANNED AIRCRAFT SYSTEM (SHADOW)
engine_type_and_quantity1 GASOLINE ENGINE
unladen_weight_in_kilograms97.5
aircraft_type_for_which_designedFIXED WING
maximum_operating_altitude_rating17000.0 FEET FT
part_name_assigned_by_controlling_agencyJUMP 20
NSN5305-00-285-4540
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 121839 · 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: 0.091 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: CADMIUM OR ZINC
•
FASTENER LENGTH: 0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.250 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
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HEAD STYLE: ROUND
•
THREAD DIRECTION: RIGHT-HAND
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SCREW MATERIAL: STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.091 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTCADMIUM OR ZINC
FASTENER LENGTH0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
THREAD LENGTH0.250 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.138 INCHES IN
HEAD STYLEROUND
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
THREAD CLASS2A A
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 121839?
121839 is a UNMANNED AIRCRAFT.
What is the NSN for 121839?
121839 is cataloged in the U.S. Government catalog under NSN 5305-00-285-4540. This indicates validated use in U.S. government and defense supply chains.
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