GR520CP-2 — STUD ASSEMBLY,TURNLOCK FASTENER

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

GR520CP-2: STUD ASSEMBLY,TURNLOCK FASTENER.

STUD ASSEMBLY,TURNLOCK FASTENER. Key specifications include diameter: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN, material: STEEL CORROSION RESISTING EJECTOR SPRING, drive_type: SLOTTED, eyelet_length: 0.500 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN, stud_diameter: 0.250 INCHES NOMINAL IN, surface_treatment: CHROMATE AND ZINC RECEPTACLE. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-269-5201, 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

GR520CP-2

NSN: 5325-01-269-5201
FSC: 5325 — Fastening Devices
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)

SPECIFICATIONS

diameter	0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
material	STEEL CORROSION RESISTING EJECTOR SPRING
drive_type	SLOTTED
eyelet_length	0.500 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
stud_diameter	0.250 INCHES NOMINAL IN
surface_treatment	CHROMATE AND ZINC RECEPTACLE
stud_assembly_style	STUD ASSEMBLY
securing_device_type	SPRING
eyelet_outside_diameter	0.531 INCHES NOMINAL IN
turnlock_stud_head_style	FILLISTER
material_accommodated_thickness	0.085 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
material_document_and_classification	QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE CAP
NSN	5325-01-269-5201

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE RECEPTACLE

•

EYELET OUTSIDE DIAMETER: 0.531 INCHES NOMINAL IN

•

DRIVE TYPE: SLOTTED

•

MATERIAL ACCOMMODATED THICKNESS: 0.085 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5568,COMP 631 ASSN STD SINGLE MATERIAL RESPONSE PIN

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE RECEPTACLE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE RETAINER
EYELET OUTSIDE DIAMETER	0.531 INCHES NOMINAL IN
DRIVE TYPE	SLOTTED
MATERIAL ACCOMMODATED THICKNESS	0.085 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5568,COMP 631 ASSN STD SINGLE MATERIAL RESPONSE PIN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5678,COMP 631 ASSN STD SINGLE MATERIAL RESPONSE EJECTOR SPRING
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A331 ASSN STD SINGLE MATERIAL RESPONSE RECEPTACLE
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE CAP
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE RETAINER

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 1

SPS4-2Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

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 GR520CP-2?

GR520CP-2 is a STUD ASSEMBLY,TURNLOCK FASTENER.

What parts can replace GR520CP-2?

There is 1 known substitute for GR520CP-2: SPS4-2. Substitute compatibility should be verified for your specific system.

What is the NSN for GR520CP-2?

GR520CP-2 is cataloged in the U.S. Government catalog under NSN 5325-01-269-5201. This indicates validated use in U.S. government and defense supply chains.

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