BACS21Y3BC — STUD ASSEMBLY,TURNLOCK FASTENER

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

BACS21Y3BC: STUD ASSEMBLY,TURNLOCK FASTENER.

STUD ASSEMBLY,TURNLOCK FASTENER. Key specifications include diameter: 0.251 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN, material: COPPER ALLOY 172 STUD, drive_type: SLOTTED, surface_treatment: PASSIVATE EYELET, stud_assembly_style: STUD ASSEMBLY, eyelet_outside_diameter: 0.305 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-054-7425, 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

BACS21Y3BC

NSN: 5325-01-054-7425
FSC: 5325 — Fastening Devices
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)

SPECIFICATIONS

diameter	0.251 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN
material	COPPER ALLOY 172 STUD
drive_type	SLOTTED
surface_treatment	PASSIVATE EYELET
stud_assembly_style	STUD ASSEMBLY
eyelet_outside_diameter	0.305 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
turnlock_stud_head_style	FLAT COUNTERSUNK
material_accommodated_thickness	0.090 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN
surface_treatment_document_and_classification	QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE STUD
NSN	5325-01-054-7425

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE STUD

•

EYELET OUTSIDE DIAMETER: 0.305 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN

•

DRIVE TYPE: SLOTTED

•

MATERIAL ACCOMMODATED THICKNESS: 0.090 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN

•

DIAMETER: 0.251 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN

•

TURNLOCK STUD HEAD STYLE: FLAT COUNTERSUNK

•

SURFACE TREATMENT: CADMIUM AND CHROMATE STUD

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE STUD
EYELET OUTSIDE DIAMETER	0.305 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
DRIVE TYPE	SLOTTED
MATERIAL ACCOMMODATED THICKNESS	0.090 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN
DIAMETER	0.251 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN
TURNLOCK STUD HEAD STYLE	FLAT COUNTERSUNK
SURFACE TREATMENT	CADMIUM AND CHROMATE STUD
SURFACE TREATMENT	PASSIVATE EYELET
MATERIAL	COBALT ALLOY PIN
MATERIAL	STEEL COMP 305 EYELET

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: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is BACS21Y3BC?

BACS21Y3BC is a STUD ASSEMBLY,TURNLOCK FASTENER.

What is the NSN for BACS21Y3BC?

BACS21Y3BC is cataloged in the U.S. Government catalog under NSN 5325-01-054-7425. This indicates validated use in U.S. government and defense supply chains.

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