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BACS21B5FH18 — STUD,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

BACS21B5FH18: STUD,TURNLOCK FASTENER.

The STUD,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include diameter: 0.562 INCHES NOMINAL IN, material: STEEL COMP 1010 BARREL, drive_type: SLOTTED, grip_length: 0.367 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN, surface_treatment: CADMIUM BARREL, securing_device_type: SPRING. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-199-7201, 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
BACS21B5FH18
NSN: 5325-01-199-7201
FSC: 5325 — Fastening Devices
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
diameter0.562 INCHES NOMINAL IN
materialSTEEL COMP 1010 BARREL
drive_typeSLOTTED
grip_length0.367 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
surface_treatmentCADMIUM BARREL
securing_device_typeSPRING
turnlock_stud_head_styleFLAT COUNTERSUNK
stud_shank_major_diameter0.262 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
turnlock_stud_shank_styleSTUD SHANK
material_accommodated_thickness0.171 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
surface_treatment_document_and_classificationQQ-P-416A,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE BARREL A
NSN5325-01-199-7201
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: BACS21B5FH18 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416A,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE BARREL A
•
DRIVE TYPE: SLOTTED
•
MATERIAL ACCOMMODATED THICKNESS: 0.171 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
•
TURNLOCK STUD SHANK STYLE: STUD SHANK
•
DIAMETER: 0.562 INCHES NOMINAL IN
•
SECURING DEVICE TYPE: SPRING
•
TURNLOCK STUD HEAD STYLE: FLAT COUNTERSUNK
•
STUD SHANK MAJOR DIAMETER: 0.262 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416A,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE BARREL A
DRIVE TYPESLOTTED
MATERIAL ACCOMMODATED THICKNESS0.171 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
TURNLOCK STUD SHANK STYLESTUD SHANK
DIAMETER0.562 INCHES NOMINAL IN
SECURING DEVICE TYPESPRING
TURNLOCK STUD HEAD STYLEFLAT COUNTERSUNK
STUD SHANK MAJOR DIAMETER0.262 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM BARREL
MATERIALSTEEL COMP 1010 BARREL
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BACS21B5FH18?
BACS21B5FH18 is a STUD,TURNLOCK FASTENER.
What is the NSN for BACS21B5FH18?
BACS21B5FH18 is cataloged in the U.S. Government catalog under NSN 5325-01-199-7201. This indicates validated use in U.S. government and defense supply chains.
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