Name: Cherry E-Z Buck
Brand: Cherry

Two-sided, solid rivet: “Buck or squeeze the fastener, using tools in the following table” (Cherry CA-1032 (E-Z Buck), p.10, Tool Selection)

Shear: 50-53 ksi
Blind bulb: n/a
Install: Both sides needed
Diameters: 3/32, 1/8, 5/32, 3/16"
Lead-time risk (SpecLok assessment): Medium

Typical applications

·Solid-rivet joints where weight matters (CA-1032: 33% lighter than Monel)

Strengths

+33% lighter than Monel, 26% lighter than A-286 (CA-1032)
+Reduced upsetting force vs Monel or A-286 (CA-1032)
+Retains 60% of RT strength at 550°F; 800°F max (CA-1032)

Trade-offs

−Needs access to both sides (driven)
−Fsu 53 ksi (CA-1032)

Also called E-Z Buck, Ti/Cb rivet, CSR902/903/904. P/N: CSR902/903/904 · e.g. CSR902B-6E-5

Datasheet strength: Titanium/Columbium; Fsu = 53 ksi as-driven (MMPDS-02 Table 8.1.2(b)); maximum temperature 800°F: Cherry CA-1032.

Standards

NASM20426 head (CSR902)
NASM20470 head (CSR903)
NAS1097 head (CSR904)

Materials and galvanic compatibility vs CFRP

Alloy	Shear	vs CFRP	Notes	Source
Titanium	53 ksi	low	Ti/Cb (titanium-columbium), 800°F max	CA-1032: Fsu 53 ksi as-driven (MMPDS-02 Table 8.1.2(b))

vs CFRP: MIL-STD-889C Table I, graphite column: high = incompatible in all environments; low = compatible except sea-water immersion; unrated = SpecLok has not read a rating for this material.About derived ksi

Derived ksi values are min shear ÷ nominal shank area, computed from the datasheet's lbf/kN figures; the datasheet itself publishes no ksi.

Specs source: Cherry CA-1032 (E-Z Buck catalog) ↗: Features & weight comparison; MMPDS-02 solid-rivet shear table; CSR902/903/904 dimension tables 3/32"-3/16". Lead-time risk is SpecLok's sourcing assessment, not a datasheet value.

3 head styles

Not redrawn: no head dimensions for this variant in the documents on file. The data at right is from the cited document.

100° Flush Head · 100°

CSR902 · NASM20426: Titanium/Columbium (CSR902B, CSR902T)

Source: Cherry CA-1032 (E-Z Buck), CSR902B / CSR902T 100° Flush Head tables ↗

Head styles (manufacturer terms)

100° Flush Head (CSR902)
Universal head (NASM20470) (CSR903)
100° Flush Shear Head (CSR904)

Solid · 3 steps

1/3Inserted

“Insert rivet into hole. Measure backside protrusion. … based on a backside protrusion of 0.8D minimum and 1.5D maximum.”

Cherry CA-1032 (E-Z Buck), p.11, Rivet Grip Selection ↗

Drawing traced from: p.11 backside protrusion, 1.5D maximum.

Key (how to read these diagrams)

Manufacturer figure: Cherry CA-1032 (E-Z Buck), p.9-11, Dimensions from the CSR904D drawing and the Inspection and Grip Selection tables ↗CA-1032 has no install figure. These drawings are built from its own dimensions (head A, backside protrusion, minimum upset), not traced from a picture.Schematic cross-section at the source figure's proportions, not to scale. Terms are the document's own.

Compare every family's mechanism

Installation verification and preload

Installed preload

Solid squeezed rivet; installed preload is not a published concept. CA-1032 gives "typical squeeze load" installation guidelines (-3: 1200 lb to -6: 5000 lb), which are installation force, not residual clamp.

What to check after install

Driven-tail upset: minimum diameter 1.3D (-3: .122" to -6: .243"); minimum height 0.3D (.028" to .056") (CA-1032).
Pre-drive grip check: backside protrusion 0.8D min / 1.5D max before driving.

Check gauges (1) and sources.Details

No inspection gauges published; upset dimensions are measured directly.

Sources: CA-1032 catalog. Acceptance limits belong to the controlling spec; verify against your program's process documentation.

Print a shop verification card for the floor

Tool: Rivet gun and bucking bar, or squeeze (CA-1032 "typical squeeze load" guidelines)
Special / proprietary: Standard tooling
Training: Not stated in the cited documents.
Inspection: Driven-tail upset: min 1.3D diameter, 0.3D height (CA-1032).

"Ductility: reduced upsetting force compared to monel or A-286" (CA-1032).

The published install tool and nose for each size, other access options, and the gauges that check the install, from the manufacturer's own tool tables.

Tool: Rivet gun and bucking bar, or squeeze (CA-1032 "typical squeeze load" guidelines)

CA-1032 gives typical squeeze loads (-3: 1200 lb to -6: 5000 lb) but no tool part numbers.

Full tool tables, envelopes, clearances and source notes Compare tooling burden across all 25 families

Removal

No published removal procedure found; follow the manufacturer's instructions. Manufacturer page ↗

P/N series CSR902/903/904 · e.g. CSR902B-6E-5Paste a full part number into the decoder.

Manufacturer: Cherry
Category: Solid rivet

Datasheet (PDF) ↗
Manufacturer page ↗
Cherry CA-1032 (E-Z Buck catalog) ↗: Features & weight comparison; MMPDS-02 solid-rivet shear table; CSR902/903/904 dimension tables 3/32"-3/16".

Find the part number for your stack

DiameterStack thickness, in

SpecLok has no dash-number table for this family yet: the quote line goes out as the family, part number to be confirmed.

QtyInclude install tooling

Sourcing

Lead-time risk (SpecLok sourcing assessment): Medium

Get quotes: SpecLok sources this from authorized distributors and returns price, lead time and certs.You buy from the authorized distributor, who is named on your returned quote. SpecLok is free for buyers.

Supply signalfor this family

224 NSNs carry a part number of this family, recorded by 6 CAGE codes (FLIS, March 2025).
Last DoD award for RIVET,SOLID items (FSC 5320): 2026-06-26; 793 awards since 2025-10-01.
Last DoD award for RIVET,TUBULAR items (FSC 5320): 2026-06-24; 45 awards since 2025-10-01.
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.