Name: CR2539-4-02
Brand: Cherry

CR2539-4-02 decoded
Family	CherryLOCK (Cherry)
Head style	Universal head (MS20470), NAS1738M (source: Cherry CA-1005 (CherryLOCK), p.7 conversion table; p.8 NAS1738 universal head)
Nominal diameter	-4 (.140" shank)
Grip	max grip .125" (-02 = 2/16"), grip range .063-.125" (CA-1005 p.8)
Material	Monel sleeve, Inconel 600 stem (CR2539P: Monel, cad. plt'd = NAS1738MW)

Decoded from the published numbering scheme; not a claim that this exact dash number is a stocked SKU, and not a certified design authority. Always verify against the controlling drawing, spec, and your stress group.

Dimensions

Dimensions as printed, inches
Dia.	Sleeve shank diameter	.140+.003 -.001
A	Head diameter	.250±.010
B	Head height	.054+.010 -.000
Z	Stem length above the head, as supplied	1.65(REF)
Grip limits	Dash 4-02	.063-.125
L	Under the head to end of sleeve	.281

All dimensions (9)

BK (Aluminum)	Min blind clearance for satisfactory installation	.30
BK (Monel & Inconel)	Min blind clearance for satisfactory installation	.33
K	Under the head to blind end of stem	.44

As printed on CA-1005 p.8 ↗. Letters match the drawing.

Also printed in CA-1005 for this part

Materials CR2539 (NAS1738M)	Sleeve MONEL QQ-N-281 (NONE); stem INCONEL 600 AMS 5665 (NONE); lock ring MONEL QQ-N-281 (NONE) (CA-1005 p.8)
Materials CR2539P (NAS1738MW)	Sleeve MONEL QQ-N-281 (CAD PLATE QQ-P-416 TYPE II CLASS 2); stem INCONEL 600 AMS 5665 (NONE); lock ring MONEL QQ-N-281 (NONE) (CA-1005 p.8)

Series and strength (datasheet)

CR2xxx · e.g. CR2249-5-04 (= NAS1738B)

Bulbed: 50,000 psi (5056 aluminum sleeve) to 75,000 psi (Monel, Inconel 600 sleeve); wiredraw: 30,000 / 38,000 psi (aluminum) to 95,000 psi (A-286, CR2642/2643): Cherry CA-1005.

Datasheet (PDF) ↗

To scale from Cherry CA-1005 ↗ p.8 (PDF page 10).Drawing notes

Drawn to scale from the printed values in Cherry CA-1005 p.8 (PDF page 10) (nas1738 universal head), Rev. A, Date: March 12, 2007, DCR 07-0143. Letters are the catalog's. Manufacturer nominal: printed values, the mean where only two limits are printed. L is drawn at its printed (max) value, K at its max. Crown drawn as a circular arc through A and B; the catalog dimensions no crown radius. Stem details and locking parts are not dimensioned in CA-1005 and are not drawn.

Model: CA-1005 p.8

Envelope model, not manufacturer CAD.Model details

CR2539-4-02, manufacturer nominal. Simplified envelope model from Cherry CA-1005 p.8 printed dimensions. Manufacturer nominal: printed values, the mean where only two limits are printed. Flush heads hold the printed head angle; the head depth is derived. Not manufacturer CAD. Verify against the current catalog before use. Separate solids for the sleeve and the stem envelope. Axis +Z, head up, z = 0 at the face the head bears on. STEP (AP214) is in inches; STL has no units and is written in millimetres.

CR2539 grip chart: -4 (.140" shank)

9 grips

Every catalogued max-grip dash number at this diameter. Stack thickness must fall inside the fastener's grip range: see the design calculators.

CR2539-4-01 CR2539-4-02 CR2539-4-03 CR2539-4-04 CR2539-4-05 CR2539-4-06 CR2539-4-07 CR2539-4-08 CR2539-4-09

Other diameters at this grip:

CR2539-5-02 CR2539-6-02

Pulled stem / bulbing · 6 steps

1/6Inserted, sheet gap

“Before pulling begins.”

Cherry CA-1005 (CherryLOCK), p.3, Installation Sequence ↗

Drawing traced from: Panel 1.

Key (how to read these diagrams)

Manufacturer figure: Cherry CA-1005 (CherryLOCK), p.3, Bulbed CherryLOCK Installation Sequence, panels 1-6 ↗CA-1005 notes for panel 5: “In minimum grip shear ring may not shear”. Panel 6 is drawn at “maximum grip illustrated”.Schematic cross-section at the source figure's proportions, not to scale. Terms are the document's own.

Install tooling

Install tooling: G700 (Cherry CA-1013 (CherryLOCK process manual), p.14, Selecting Cherrylock Tools) · proprietary

H681-4C H681 pulling head, Universal Head / Countersunk Head (NASM20426)
H690-4U H690 pulling head, Universal Head (G695B right angle)

CherryLOCK tool tables

Decode details

Decode details
Series	Bulbed CherryLOCK
Decode confidence	high
Numbering source	Cherry CA-1005, numbering system

CherryLOCK: CR2 + rivet type & material combination + head style digit + shank diameter + maximum grip length in 16ths (CA-1005).
Head and materials from the catalog table for this base part number.

Government reference cross-reference (DLA FLIS)

not listed under this PN

CR2539-4-02 is not listed in FLIS under this exact part number (FLIS data as of 2025-03-18, March 2025 snapshot). FLIS may record it with a material or finish code, or under the standard part number.

Source: DLA PUB LOG ↗. Search any part number in the decoder.

Cross-reference CR2539-4-02

CherryLOCK by Cherry, blind rivet
Datasheet (PDF) ↗
Manufacturer page ↗
Numbering: Cherry CA-1005, numbering system ↗
Geometry: CA-1005 ↗

Lead-time risk for this family (SpecLok sourcing assessment): Low

Supply signal

not in FLIS by this PN; no SpecLok quotes yet

Supply signalfor this part number

Not listed in FLIS under this exact part number (March 2025 snapshot).
No SpecLok quotes yet.

A signal from records SpecLok holds, not availability, stock or a lead-time promise. FLIS lists who has recorded a part number for the item, not who makes it today. DoD awards carry no NSN or part number, so award activity is for the item name's class.

Sources: DLA FLIS Data Electronic Reading Room (PUB LOG) ↗, DLA PUB LOG ↗, USAspending.gov award search API ↗; DoD award data 2025-10-01 to 2026-07-06; compiled 2026-09-28.