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99019-51 — PIN,FIRING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

99019-51: PIN,FIRING.

The PIN,FIRING is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: FIRING PIN-INITIATO. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-550-0304, 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
99019-51
NSN: 5305-00-550-0304
NIINs: 005500304, 016994278
FSC: 5305 — Screws
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyFIRING PIN-INITIATO
NSN5305-00-550-0304
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 99019-51 · 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: 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
•
FASTENER LENGTH: 3.000 INCHES NOMINAL IN
•
THREAD LENGTH: 0.750 INCHES MINIMUM IN
•
HARDNESS RATING: 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.428 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
FASTENER LENGTH3.000 INCHES NOMINAL IN
THREAD LENGTH0.750 INCHES MINIMUM IN
HARDNESS RATING23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.428 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 10P STYLE AND 5 GRADE
MINIMUM YIELD STRENGTH120000 POUNDS PER SQUARE INCH LBS
SUBSTITUTES & CROSS-REFERENCES 1
MS35295-18Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 99019-51?
99019-51 is a PIN,FIRING.
What parts can replace 99019-51?
There is 1 known substitute for 99019-51: MS35295-18. Substitute compatibility should be verified for your specific system.
What is the NSN for 99019-51?
99019-51 is cataloged in the U.S. Government catalog under NSN 5305-00-550-0304. 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.