CherryLOCK, Cherry
CR2249-6-04
Locked-spindle blind rivet, bulbed (NAS1738/1739) or wiredraw (NAS1398/1399); hydroshift riveters.
- Head Universal head (MS20470), NAS1738B
- Diameter -6 (.201" shank)
- Grip .188-.250"
- Material 5056 aluminum sleeve, alloy steel…
- Lead-time risk Low
Install tool G784, proprietary · Exact nose, every brand · Variable stack? Plan grips
CAD for CR2249-6-04
| Family | CherryLOCK (Cherry) |
|---|---|
| Head style | Universal head (MS20470), NAS1738B (source: Cherry CA-1005 (CherryLOCK), p.7 conversion table; p.8 NAS1738 universal head) |
| Nominal diameter | -6 (.201" shank) |
| Grip | max grip .250" (-04 = 4/16"), grip range .188-.250" (CA-1005 p.8) |
| Material | 5056 aluminum sleeve, alloy steel stem (cad. plt'd) |
Decoded from the published numbering scheme; not a claim that this exact dash number is a stocked SKU.
Reference only: the controlling drawing, its process spec and the manufacturer's installation instructions govern. How to use these answers
Dimensions
| Dia. | Sleeve shank diameter | .201+.003 -.001 |
| A | Head diameter | .375±.010 |
| B | Head height | .080+.010 -.000 |
| Z | Stem length above the head, as supplied | 1.65(REF) |
| Grip limits | Dash 6-04 | .188-.250 |
| L | Under the head to end of sleeve | .469 |
All dimensions (9)Fewer dimensions
| BK (Aluminum) | Min blind clearance for satisfactory installation | .37 |
| BK (Monel & Inconel) | Min blind clearance for satisfactory installation | .41 |
| K | Under the head to blind end of stem | .64 |
As printed on CA-1005 p.8 ↗. Letters match the drawing.
Also printed in CA-1005 for this part
| Materials CR2249 (NAS1738B) | Sleeve 5056 QQ-A-430 (MIL-C-5541); stem 8740 STEEL AMS 6322 (CAD PLATE QQ-P-416 TYPE II CLASS 2); 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
Model: CA-1005 p.8
Envelope model, not manufacturer CAD.Model details
CR2249-6-04, manufacturer nominal. Simplified component 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. One named solid per component, as Cherry names them (CherryMAX: SLEEVE, STEM, LOCKING COLLAR, DRIVING ANVIL; CherryLOCK: SLEEVE, STEM, LOCK RING). Cherry dimensions only the sleeve and the stem's envelope (Z, K, not to exceed D): the stem's detail, the sleeve's bore and head recess, the collar and the anvil are scaled from Cherry's own figures and listed as scaled in the STEP header. The STEP file is an assembly: each component is its own named part with its own colour. STL comes as the whole part or one component at a time. 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.
CR2249 grip chart: -6 (.201" shank)
Every catalogued max-grip dash number at this diameter. Stack thickness must fall inside the fastener's grip range: see the design calculators.
Other diameters at this grip:
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.
Required tooling, every brand
CR2249-6-04 (CherryLOCK, 3/16") installs with G784 with H681 Standard.
Other tools that work2 process-doc listings
As the fastener's own process document lists them
- G686B-S with H681 Standard Cherry CA-1013 p.14 ↗
- G689 with H681 Standard Cherry CA-1013 p.14 ↗
Other brands' noses1 statement
Cross-brand fit, only where a catalog says so
- Gage Bilt says GB784 replaces G784 (Cherry) Gage Bilt 2017 p.153 ↗
Gage Bilt's cross-reference lists GB784 (installation tool) for G784.
Sources2
- Cherry CA-1013 (CherryLOCK process manual), p.14, Selecting Cherrylock Tools ↗
- Bulbed: all grips; -6 Monel and Inconel "may require 95 PSI air pressure at tool".
- Bulbed: all grips.
- Gage Bilt Aerospace Catalog 2017 (archived; pages are PDF pages), p.153, Other - Gage Bilt Cross Reference, page 48 ↗
Diameter -6 (3/16"): decoded from the part number.
Tool catalogs are the manufacturers' as published in the cited edition; confirm current PNs with the tool maker before purchase. Install per the OEM process specification.
Install tooling
Install tooling: G784 (Cherry CA-1013 (CherryLOCK process manual), p.14, Selecting Cherrylock Tools) · proprietary
- H681-6C H681 pulling head, Universal Head / Countersunk Head (NASM20426)
- H690-6U H690 pulling head, Universal Head (G695B right angle)
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)
CR2249-6-04 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.
- 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
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 2026-10-02.
Image credits: Cherry Aerospace, CherryLOCK® Blind Rivets catalog CA-1005, p.5 ↗. Product images belong to their manufacturers.
Sources
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