27S12-5-1BB — STUD ASSEMBLY,TURNLOCK FASTENER

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

27S12-5-1BB: STUD ASSEMBLY,TURNLOCK FASTENER.

STUD ASSEMBLY,TURNLOCK FASTENER. Key specifications include diameter: 0.251 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN, material: COBALT ALLOY PIN, drive_type: SLOTTED, eyelet_length: 0.328 INCHES NOMINAL IN, stud_head_height: 0.069 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN, surface_treatment: PASSIVATE EYELET. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-338-2887, 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

27S12-5-1BB

NSN: 5325-01-338-2887
FSC: 5325 — Fastening Devices
CAGE: 71286 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV CAMLOC PRODUCTS (USA)

SPECIFICATIONS

diameter	0.251 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN
material	COBALT ALLOY PIN
drive_type	SLOTTED
eyelet_length	0.328 INCHES NOMINAL IN
stud_head_height	0.069 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN
surface_treatment	PASSIVATE EYELET
stud_assembly_style	STUD ASSEMBLY
eyelet_outside_diameter	0.247 INCHES NOMINAL IN
turnlock_stud_head_style	STUD HEAD
material_accommodated_thickness	0.150 INCHES MINIMUM AND 0.179 INCHES MAXIMUM IN
material_document_and_classification	QQ-C-530 FED SPEC SINGLE MATERIAL RESPONSE STUD
distance_from_engaging_member_to_largest_bearing_surface_of_head	0.542 INCHES NOMINAL IN
NSN	5325-01-338-2887

COMPONENT DIAGRAM

KEY FEATURES

•

EYELET OUTSIDE DIAMETER: 0.247 INCHES NOMINAL IN

•

DRIVE TYPE: SLOTTED

•

MATERIAL ACCOMMODATED THICKNESS: 0.150 INCHES MINIMUM AND 0.179 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE EYELET

•

DIAMETER: 0.251 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN

•

STUD HEAD HEIGHT: 0.069 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN

•

DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD: 0.542 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

EYELET OUTSIDE DIAMETER	0.247 INCHES NOMINAL IN
DRIVE TYPE	SLOTTED
MATERIAL ACCOMMODATED THICKNESS	0.150 INCHES MINIMUM AND 0.179 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE EYELET
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-C-530 FED SPEC SINGLE MATERIAL RESPONSE STUD
DIAMETER	0.251 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN
STUD HEAD HEIGHT	0.069 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN
DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD	0.542 INCHES NOMINAL IN
TURNLOCK STUD HEAD STYLE	STUD HEAD
SURFACE TREATMENT	PASSIVATE 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 27S12-5-1BB?

27S12-5-1BB is a STUD ASSEMBLY,TURNLOCK FASTENER.

What is the NSN for 27S12-5-1BB?

27S12-5-1BB is cataloged in the U.S. Government catalog under NSN 5325-01-338-2887. This indicates validated use in U.S. government and defense supply chains.

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